Solar Scope Modifications

The Charlie Bates Solar Astronomy Project is proudly sponsored by the following fine companies:

Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

Merry Christmas, Happy New Year and looking forward to a great solar cycle 25!

Welcome to Solar Chat! The best forum for Solar Astronomy

Moving forward from solar cycle 24 to 25

Solar Scope Modifications

New Topic

808 topics

Topics

Replies

Views

Last post

Baader 1.25x GPC with PST Mod, How to Mount the GPC?

Last post by MalVeauX « Sun Jan 19, 2020 8:57 pm
Replies: 12
by MalVeauX » Sat Jan 18, 2020 2:10 am

12 Replies

182 Views

Last post by MalVeauX
Sun Jan 19, 2020 8:57 pm
PST modification - idiots guide

Last post by AndiesHandyHandies « Fri Jan 17, 2020 9:34 am
Replies: 38
by Montana » Tue Sep 24, 2019 11:15 am
1

2
38 Replies

1664 Views

Last post by AndiesHandyHandies
Fri Jan 17, 2020 9:34 am
How close to F10 must a PST mod truly be?

Last post by Merlin66 « Thu Jan 16, 2020 9:37 pm
Replies: 14
by MalVeauX » Fri Jan 10, 2020 8:23 pm

14 Replies

255 Views

Last post by Merlin66
Thu Jan 16, 2020 9:37 pm
Motorized Etalon Tuners

Last post by Rusted « Wed Jan 15, 2020 8:46 am
Replies: 13
by Martin_S » Sat Nov 16, 2019 8:01 pm

13 Replies

495 Views

Last post by Rusted
Wed Jan 15, 2020 8:46 am
No adapters, no tube cutting: the easiest 80mm "stage 1" Lunt LS50 mod possible!

Last post by marktownley « Mon Jan 13, 2020 2:32 pm
Replies: 7
by Roel80 » Mon Dec 23, 2019 2:38 pm

7 Replies

297 Views

Last post by marktownley
Mon Jan 13, 2020 2:32 pm
Is this possible?

Last post by antonello « Mon Jan 13, 2020 6:57 am
Replies: 2
by hopskipson » Sat Jan 11, 2020 9:00 pm

2 Replies

110 Views

Last post by antonello
Mon Jan 13, 2020 6:57 am
PST conversion?

Last post by marktownley « Sun Dec 29, 2019 4:50 pm
Replies: 1
by garymck » Sun Dec 29, 2019 8:11 am

1 Replies

216 Views

Last post by marktownley
Sun Dec 29, 2019 4:50 pm
A 6" f/8 PST mod? Are we kidding ourselves?

Last post by Rusted « Fri Dec 27, 2019 9:41 am
Replies: 30
by Rusted » Sat Oct 19, 2019 11:51 am
1

2
30 Replies

1792 Views

Last post by Rusted
Fri Dec 27, 2019 9:41 am
SH Quark Chromosphere

Last post by marktownley « Wed Dec 25, 2019 2:11 pm
Replies: 3
by AndiesHandyHandies » Tue Dec 24, 2019 3:17 pm

3 Replies

165 Views

Last post by marktownley
Wed Dec 25, 2019 2:11 pm
Skywatcher DC Motor drive for PST etalon.

Last post by Rusted « Tue Dec 24, 2019 3:23 pm
Replies: 29
by Rusted » Mon Nov 18, 2019 3:41 pm
1

2
29 Replies

929 Views

Last post by Rusted
Tue Dec 24, 2019 3:23 pm
Convert my William Optics ZS80IIED

Last post by marktownley « Sat Dec 21, 2019 9:30 pm
Replies: 9
by p1taylor » Sun Dec 15, 2019 6:18 pm

9 Replies

258 Views

Last post by marktownley
Sat Dec 21, 2019 9:30 pm
12" White light Newtonian

Last post by christian viladrich « Fri Dec 20, 2019 10:59 am
Replies: 7
by AndiesHandyHandies » Thu Oct 24, 2019 8:09 am

7 Replies

524 Views

Last post by christian viladrich
Fri Dec 20, 2019 10:59 am
How to internally mount an ERF?

Last post by Rusted « Tue Dec 17, 2019 12:09 pm
Replies: 1
by Roel80 » Tue Dec 17, 2019 11:56 am

1 Replies

101 Views

Last post by Rusted
Tue Dec 17, 2019 12:09 pm
D-ERF in converging beam?

Last post by Rusted « Mon Dec 16, 2019 7:51 am
Replies: 26
by Rusted » Tue Dec 10, 2019 1:58 pm
1

2
26 Replies

785 Views

Last post by Rusted
Mon Dec 16, 2019 7:51 am
"Magic" distance of Lunt LS50PT etalon from focal plane?

Last post by Roel80 « Tue Dec 10, 2019 2:59 pm
Replies: 15
by Roel80 » Sat Nov 23, 2019 8:45 am

15 Replies

537 Views

Last post by Roel80
Tue Dec 10, 2019 2:59 pm
Vixen VMC110 PST mod

Last post by marktownley « Tue Dec 03, 2019 7:36 pm
Replies: 22
by AndiesHandyHandies » Wed May 22, 2019 7:19 am

22 Replies

1679 Views

Last post by marktownley
Tue Dec 03, 2019 7:36 pm
Took my Lunt LS50T apart to measure stuff - interesting results...

Last post by Roel80 « Mon Dec 02, 2019 10:56 am
Replies: 12
by Roel80 » Sun Nov 24, 2019 4:39 pm

12 Replies

504 Views

Last post by Roel80
Mon Dec 02, 2019 10:56 am
Removal of lunt erf double stack possible?

Last post by Bob Yoesle « Fri Nov 22, 2019 2:40 pm
Replies: 3
by Stardust5858 » Tue Oct 29, 2019 12:01 pm

3 Replies

490 Views

Last post by Bob Yoesle
Fri Nov 22, 2019 2:40 pm
Upgrade to the Vegemite etalon tuner

Last post by Rusted « Sun Nov 17, 2019 3:16 pm
Replies: 7
by Merlin66 » Sat Nov 16, 2019 12:19 am

7 Replies

327 Views

Last post by Rusted
Sun Nov 17, 2019 3:16 pm
PST mod on a C14

Last post by mdwmark « Fri Nov 15, 2019 5:38 am
Replies: 11
by oli14 » Sun Nov 03, 2019 7:33 pm

11 Replies

933 Views

Last post by mdwmark
Fri Nov 15, 2019 5:38 am
Common relectors for H-a?

Last post by Rusted « Sun Nov 03, 2019 12:07 pm
Replies: 2
by Rusted » Sun Nov 03, 2019 7:12 am

2 Replies

434 Views

Last post by Rusted
Sun Nov 03, 2019 12:07 pm
Double stack with a Quark

Last post by hopskipson « Thu Oct 24, 2019 2:12 am
Replies: 3
by hopskipson » Tue Jul 09, 2019 9:52 pm

3 Replies

664 Views

Last post by hopskipson
Thu Oct 24, 2019 2:12 am
127mm Meade Triplet Mod

Last post by AndiesHandyHandies « Sat Oct 19, 2019 8:34 am
Replies: 14
by AndiesHandyHandies » Tue May 21, 2019 10:10 pm

14 Replies

1270 Views

Last post by AndiesHandyHandies
Sat Oct 19, 2019 8:34 am
Easy PST Module with ERF (non-destructive, no cutting of OTA, & no-black-box rebuild)

Last post by MalVeauX « Mon Oct 14, 2019 1:22 am
Replies: 62
by MalVeauX » Fri Sep 06, 2019 5:07 pm
1

2

3
62 Replies

2561 Views

Last post by MalVeauX
Mon Oct 14, 2019 1:22 am
DIY Solar Wedge ND3.0 alternatives for Imaging only

Last post by Merlin66 « Sat Oct 12, 2019 5:35 am
Replies: 15
by Martin_S » Tue May 21, 2019 9:40 pm

15 Replies

1146 Views

Last post by Merlin66
Sat Oct 12, 2019 5:35 am
Solar mod using a double stack etalon?

Last post by hopskipson « Sun Oct 06, 2019 8:19 pm
Replies: 18
by hopskipson » Sun Sep 29, 2019 4:13 am

18 Replies

843 Views

Last post by hopskipson
Sun Oct 06, 2019 8:19 pm
A big solar newton for ultra narrowband imaging, possible?

Last post by langleif2 « Fri Sep 27, 2019 1:17 pm
Replies: 30
by allhoest » Sat Aug 31, 2019 8:44 pm
1

2
30 Replies

1600 Views

Last post by langleif2
Fri Sep 27, 2019 1:17 pm
New CaK filter assembly.

Last post by langleif2 « Thu Sep 26, 2019 5:42 am
Replies: 5
by Merlin66 » Wed Sep 18, 2019 4:27 am

5 Replies

502 Views

Last post by langleif2
Thu Sep 26, 2019 5:42 am
Budget scope for visual

Last post by allhoest « Wed Sep 25, 2019 4:52 pm
Replies: 18
by gradoj » Mon Sep 09, 2019 12:43 am

18 Replies

918 Views

Last post by allhoest
Wed Sep 25, 2019 4:52 pm
Lunt CaK PST #1 follow up

Last post by george9 « Mon Sep 23, 2019 12:54 am

by george9 » Mon Sep 23, 2019 12:54 am

0 Replies

404 Views

Last post by george9
Mon Sep 23, 2019 12:54 am
Planning my first PST mod and need some help

Last post by solarchatted « Wed Sep 18, 2019 10:28 am
Replies: 84
by solarchatted » Tue Apr 09, 2019 2:56 pm
1

2

3

4
84 Replies

5138 Views

Last post by solarchatted
Wed Sep 18, 2019 10:28 am
Layout of filters in a CaK PST

Last post by Merlin66 « Mon Sep 09, 2019 6:33 am
Replies: 10
by Merlin66 » Thu Sep 05, 2019 1:56 am

10 Replies

566 Views

Last post by Merlin66
Mon Sep 09, 2019 6:33 am
Removing mirror’s coating

Last post by marktownley « Sat Aug 31, 2019 3:17 am
Replies: 6
by allhoest » Wed Aug 28, 2019 6:44 pm

6 Replies

541 Views

Last post by marktownley
Sat Aug 31, 2019 3:17 am
Is a C8 and a PST mod really usable?

Last post by marktownley « Sat Aug 31, 2019 3:12 am
Replies: 17
by langleif2 » Sun Aug 18, 2019 9:21 am

17 Replies

984 Views

Last post by marktownley
Sat Aug 31, 2019 3:12 am
Blocking Filter In a Collimated Beam?

Last post by george9 « Wed Aug 21, 2019 10:43 pm
Replies: 10
by marktownley » Sat Aug 17, 2019 11:57 am

10 Replies

810 Views

Last post by george9
Wed Aug 21, 2019 10:43 pm
PST Blocking Filter modification unit by AOKSwiss

Last post by Merlin66 « Sat Aug 17, 2019 7:02 am
Replies: 6
by nicosolcy » Wed Aug 14, 2019 10:53 am

6 Replies

550 Views

Last post by Merlin66
Sat Aug 17, 2019 7:02 am
asi120mm-s DIY cooling

Last post by Bob Yoesle « Wed Jul 31, 2019 5:47 pm
Replies: 6
by Martin_S » Sat Jun 29, 2019 6:23 am

6 Replies

734 Views

Last post by Bob Yoesle
Wed Jul 31, 2019 5:47 pm
90mm TS Triplet Mod

Last post by marktownley « Fri Jul 26, 2019 6:24 am
Replies: 1
by AndiesHandyHandies » Thu Jul 25, 2019 4:19 pm

1 Replies

318 Views

Last post by marktownley
Fri Jul 26, 2019 6:24 am
PST Black Box Mods

Last post by AndiesHandyHandies « Thu Jul 18, 2019 2:56 pm
Replies: 4
by AndiesHandyHandies » Fri May 24, 2019 11:06 pm

4 Replies

659 Views

Last post by AndiesHandyHandies
Thu Jul 18, 2019 2:56 pm
PST control box replacement various versions

Last post by marktownley « Wed Jul 17, 2019 5:31 am
Replies: 13
by Astrophil » Sun Jun 30, 2019 2:12 am

13 Replies

1158 Views

Last post by marktownley
Wed Jul 17, 2019 5:31 am
I think I'm done modding..will I like the Quark?

Last post by Starry Jack « Tue Jul 16, 2019 1:31 pm
Replies: 4
by Starry Jack » Sun Jul 14, 2019 12:15 am

4 Replies

460 Views

Last post by Starry Jack
Tue Jul 16, 2019 1:31 pm
ERF choice: new D-ERF vs. used C-ERF vs. other

Last post by marktownley « Thu Jul 11, 2019 6:15 am
Replies: 4
by bluecoast » Tue Jul 09, 2019 3:02 am

4 Replies

536 Views

Last post by marktownley
Thu Jul 11, 2019 6:15 am
Look where I've placed my PST Mod Focus

Last post by Starry Jack « Wed Jul 10, 2019 1:03 pm
Replies: 2
by Starry Jack » Wed Jul 10, 2019 2:27 am

2 Replies

401 Views

Last post by Starry Jack
Wed Jul 10, 2019 1:03 pm
Location of Gasspath

Last post by AndiesHandyHandies « Tue Jul 09, 2019 8:39 pm
Replies: 3
by Starry Jack » Sun Jul 07, 2019 2:00 pm

3 Replies

434 Views

Last post by AndiesHandyHandies
Tue Jul 09, 2019 8:39 pm
10 improvements to my solar telescope set up

Last post by Carbon60 « Sat Jul 06, 2019 7:06 pm
Replies: 7
by danpro1 » Wed Jul 03, 2019 1:41 pm

7 Replies

702 Views

Last post by Carbon60
Sat Jul 06, 2019 7:06 pm
PST 'Combat'

Last post by AndiesHandyHandies « Thu Jun 27, 2019 9:32 pm
Replies: 2
by AndiesHandyHandies » Tue Jun 11, 2019 10:13 pm

2 Replies

499 Views

Last post by AndiesHandyHandies
Thu Jun 27, 2019 9:32 pm
Creative Solutions to the Problem of LARGE (8"+) ERF Cells

Last post by marktownley « Thu Jun 20, 2019 5:14 am
Replies: 9
by marktownley » Wed May 15, 2019 7:20 pm

9 Replies

1167 Views

Last post by marktownley
Thu Jun 20, 2019 5:14 am
Lenses for changing PST Focal Length

Last post by AndiesHandyHandies « Sun Jun 16, 2019 8:29 pm
Replies: 7
by AndiesHandyHandies » Mon May 07, 2018 8:58 am

7 Replies

1687 Views

Last post by AndiesHandyHandies
Sun Jun 16, 2019 8:29 pm
Improvements to your PST!

Last post by marktownley « Mon Jun 10, 2019 5:40 am
Replies: 6
by Merlin66 » Sun Sep 23, 2018 10:30 pm

6 Replies

1230 Views

Last post by marktownley
Mon Jun 10, 2019 5:40 am
Relation between BF size and the PST Sweet Spot

Last post by Starry Jack « Fri Jun 07, 2019 8:15 pm
Replies: 8
by Starry Jack » Thu Jun 06, 2019 2:30 pm

8 Replies

743 Views

Last post by Starry Jack
Fri Jun 07, 2019 8:15 pm
How do I know my Stage 2 is 200mm?

Last post by Starry Jack « Thu Jun 06, 2019 2:23 pm
Replies: 5
by Starry Jack » Thu Jun 06, 2019 12:17 am

5 Replies

485 Views

Last post by Starry Jack
Thu Jun 06, 2019 2:23 pm
remote focussing added to scope

Last post by Rusted « Sun Jun 02, 2019 3:47 pm
Replies: 4
by skyhawk » Tue Apr 02, 2019 12:15 pm

4 Replies

645 Views

Last post by Rusted
Sun Jun 02, 2019 3:47 pm
PST,TALstage 1 mod

Last post by Sol seeker uk « Thu May 30, 2019 4:54 pm
Replies: 3
by Sol seeker uk » Thu May 23, 2019 7:11 pm

3 Replies

546 Views

Last post by Sol seeker uk
Thu May 30, 2019 4:54 pm
Improving 1 angstrom Stage 1 to .5 angstrom

Last post by Starry Jack « Mon May 27, 2019 1:17 pm
Replies: 6
by Starry Jack » Sun May 26, 2019 1:25 pm

6 Replies

564 Views

Last post by Starry Jack
Mon May 27, 2019 1:17 pm
PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Last post by solarchatted « Sun May 26, 2019 3:59 pm
Replies: 13
by solarchatted » Wed May 08, 2019 12:02 pm

13 Replies

1097 Views

Last post by solarchatted
Sun May 26, 2019 3:59 pm
150 mm Solar Newton

Last post by bart1805 « Wed May 22, 2019 8:31 pm
Replies: 50
by bart1805 » Fri Mar 15, 2019 3:36 pm
1

2

3
50 Replies

3500 Views

Last post by bart1805
Wed May 22, 2019 8:31 pm
Tracking the sun MY way :)

Last post by MapleRidge « Tue May 21, 2019 12:33 am
Replies: 2
by skyhawk » Sat May 18, 2019 2:14 pm

2 Replies

486 Views

Last post by MapleRidge
Tue May 21, 2019 12:33 am
Removing new Mods

Last post by marktownley « Sun May 19, 2019 9:34 am
Replies: 23
by AndiesHandyHandies » Thu May 09, 2019 12:24 pm

23 Replies

1626 Views

Last post by marktownley
Sun May 19, 2019 9:34 am
C11 ERF-Concept

Last post by marktownley « Sun May 19, 2019 7:36 am
Replies: 15
by Okay-1 » Fri Mar 09, 2018 8:40 pm

15 Replies

2375 Views

Last post by marktownley
Sun May 19, 2019 7:36 am
Removed

Last post by marktownley « Sat May 18, 2019 10:53 am
Replies: 1
by AndiesHandyHandies » Fri May 17, 2019 9:31 pm

1 Replies

411 Views

Last post by marktownley
Sat May 18, 2019 10:53 am
PST Mod Reflections back off the Blocking Filter

Last post by KingKong852 « Sat May 18, 2019 6:46 am
Replies: 17
by AndiesHandyHandies » Wed Mar 06, 2019 6:38 pm

17 Replies

1576 Views

Last post by KingKong852
Sat May 18, 2019 6:46 am
Any interest in this part? LS50C modkit

Last post by marktownley « Tue May 14, 2019 4:23 am
Replies: 15
by MalVeauX » Sun Oct 28, 2018 8:32 pm

15 Replies

3124 Views

Last post by marktownley
Tue May 14, 2019 4:23 am
I am modding a scope mount to more easily follow NOT track........ follow the Sun when viewing, but I have hit a snag.

Last post by marktownley « Sun May 12, 2019 3:34 pm
Replies: 1
by skyhawk » Sat May 11, 2019 3:57 pm

1 Replies

375 Views

Last post by marktownley
Sun May 12, 2019 3:34 pm
Options for high resolution?

Last post by Dennis « Fri May 10, 2019 5:12 pm
Replies: 18
by Helen » Tue Apr 30, 2019 6:38 pm

18 Replies

1441 Views

Last post by Dennis
Fri May 10, 2019 5:12 pm
PST mod options and questions

Last post by AndiesHandyHandies « Tue May 07, 2019 12:55 pm
Replies: 3
by MalVeauX » Sun Mar 17, 2019 11:24 pm

3 Replies

587 Views

Last post by AndiesHandyHandies
Tue May 07, 2019 12:55 pm
help with stuck threads

Last post by MapleRidge « Tue May 07, 2019 1:24 am
Replies: 11
by MapleRidge » Thu Apr 25, 2019 2:21 am

11 Replies

891 Views

Last post by MapleRidge
Tue May 07, 2019 1:24 am
Skywatcher AZ Motor Mod

Last post by marktownley « Sun May 05, 2019 11:16 am
Replies: 1
by skyhawk » Sun May 05, 2019 10:29 am

1 Replies

318 Views

Last post by marktownley
Sun May 05, 2019 11:16 am
PST Etalon with a Quark, Log & Results

Last post by MalVeauX « Sun Apr 21, 2019 8:01 pm
Replies: 115
by MalVeauX » Thu Dec 13, 2018 9:41 pm
1

2

3

4

5
115 Replies

10426 Views

Last post by MalVeauX
Sun Apr 21, 2019 8:01 pm
Esprit 120 Focuser Mod

Last post by MapleRidge « Thu Apr 18, 2019 11:17 pm
Replies: 2
by skyhawk » Thu Apr 18, 2019 5:47 pm

2 Replies

433 Views

Last post by MapleRidge
Thu Apr 18, 2019 11:17 pm
Getting better...Sunspot with 152mm PST Stage 1

Last post by Starry Jack « Wed Apr 17, 2019 1:00 pm
Replies: 4
by Starry Jack » Thu Apr 11, 2019 4:31 am

4 Replies

622 Views

Last post by Starry Jack
Wed Apr 17, 2019 1:00 pm
Tilt needed on a front ERF?

Last post by Bob Yoesle « Sat Apr 13, 2019 1:11 am
Replies: 2
by AndiesHandyHandies » Fri Apr 12, 2019 3:59 pm

2 Replies

566 Views

Last post by Bob Yoesle
Sat Apr 13, 2019 1:11 am
Thread of Coronado diagonal

Last post by bart1805 « Wed Apr 10, 2019 9:46 pm

by bart1805 » Wed Apr 10, 2019 9:46 pm

0 Replies

535 Views

Last post by bart1805
Wed Apr 10, 2019 9:46 pm
Crazy Idea...?

Last post by Merlin66 « Mon Apr 08, 2019 6:54 am
Replies: 4
by Bob Yoesle » Sat Apr 06, 2019 3:04 pm

4 Replies

646 Views

Last post by Merlin66
Mon Apr 08, 2019 6:54 am
Telescope with etched mirrors

Last post by christian viladrich « Thu Mar 28, 2019 7:17 pm
Replies: 9
by tafig » Mon Mar 25, 2019 3:00 pm

9 Replies

931 Views

Last post by christian viladrich
Thu Mar 28, 2019 7:17 pm
Need to add remote focus to your scope

Last post by MAURITS « Thu Mar 28, 2019 4:17 pm
Replies: 3
by skyhawk » Wed Mar 27, 2019 1:12 pm

3 Replies

500 Views

Last post by MAURITS
Thu Mar 28, 2019 4:17 pm
Coronado SM Remote adjustment

Last post by aristarchus « Tue Mar 19, 2019 2:14 pm
Replies: 6
by rsfoto » Sun Sep 10, 2017 11:34 pm

6 Replies

1913 Views

Last post by aristarchus
Tue Mar 19, 2019 2:14 pm
My ITF is not in the usual place

Last post by Starry Jack « Mon Mar 18, 2019 4:00 pm
Replies: 13
by Starry Jack » Sun Mar 17, 2019 6:43 pm

13 Replies

1033 Views

Last post by Starry Jack
Mon Mar 18, 2019 4:00 pm
lunt 50 mod

Last post by marktownley « Tue Mar 05, 2019 10:11 pm
Replies: 35
by DSobserver » Sun Apr 09, 2017 2:52 pm
1

2
35 Replies

7824 Views

Last post by marktownley
Tue Mar 05, 2019 10:11 pm
PST Etalon Adjustment

Last post by marktownley « Tue Mar 05, 2019 6:53 pm
Replies: 25
by MapleRidge » Sun Dec 30, 2018 11:40 pm
1

2
25 Replies

2617 Views

Last post by marktownley
Tue Mar 05, 2019 6:53 pm
Love my Val ERF

Last post by Starry Jack « Mon Mar 04, 2019 4:30 pm
Replies: 9
by Starry Jack » Sun Feb 24, 2019 3:44 am

9 Replies

1075 Views

Last post by Starry Jack
Mon Mar 04, 2019 4:30 pm
PST + DSLR Full disk problem ... AMENDED

Last post by Sol seeker uk « Sat Mar 02, 2019 12:50 pm
Replies: 12
by solarchatted » Thu Feb 28, 2019 10:24 am

12 Replies

1094 Views

Last post by Sol seeker uk
Sat Mar 02, 2019 12:50 pm
Low cost DIY Camera Tilt Adaptor

Last post by bart1805 « Sat Mar 02, 2019 10:27 am
Replies: 4
by Carbon60 » Thu Feb 28, 2019 5:46 pm

4 Replies

604 Views

Last post by bart1805
Sat Mar 02, 2019 10:27 am
Beloptik ha system

Last post by Bob Yoesle « Sun Feb 17, 2019 9:59 pm
Replies: 3
by torsinadoc » Fri Feb 15, 2019 10:37 am

3 Replies

679 Views

Last post by Bob Yoesle
Sun Feb 17, 2019 9:59 pm
Pst mod

Last post by Sol seeker uk « Sun Feb 17, 2019 7:43 pm

by Sol seeker uk » Sun Feb 17, 2019 7:43 pm

0 Replies

583 Views

Last post by Sol seeker uk
Sun Feb 17, 2019 7:43 pm
Lunt CaK diagonal modded to straight through

Last post by bart1805 « Wed Feb 06, 2019 4:22 pm
Replies: 7
by bart1805 » Thu Jan 24, 2019 6:46 pm

7 Replies

966 Views

Last post by bart1805
Wed Feb 06, 2019 4:22 pm
Adapter for doublestacking PST etalons

Last post by bart1805 « Sat Feb 02, 2019 9:31 pm
Replies: 15
by bart1805 » Fri Jan 18, 2019 1:25 pm

15 Replies

2059 Views

Last post by bart1805
Sat Feb 02, 2019 9:31 pm
Collimator for Omega Bobs Filters

Last post by marktownley « Mon Jan 28, 2019 7:38 pm
Replies: 7
by AndiesHandyHandies » Thu Jan 24, 2019 9:37 am

7 Replies

856 Views

Last post by marktownley
Mon Jan 28, 2019 7:38 pm
Front ERF vs Internal ERF? Minimum size?

Last post by Rusted « Sun Jan 20, 2019 4:19 pm
Replies: 20
by MalVeauX » Thu May 31, 2018 4:04 pm

20 Replies

4185 Views

Last post by Rusted
Sun Jan 20, 2019 4:19 pm
Baader 35nm as ERF

Last post by AndiesHandyHandies « Sat Jan 12, 2019 9:13 am
Replies: 2
by AndiesHandyHandies » Fri Jan 11, 2019 10:07 am

2 Replies

684 Views

Last post by AndiesHandyHandies
Sat Jan 12, 2019 9:13 am
Calcium K blocking filter

Last post by george9 « Wed Jan 02, 2019 2:30 am
Replies: 17
by george9 » Mon Dec 24, 2018 1:13 am

17 Replies

2062 Views

Last post by george9
Wed Jan 02, 2019 2:30 am
Best current set up

Last post by marktownley « Wed Dec 19, 2018 10:32 am
Replies: 7
by george9 » Sun Dec 16, 2018 5:03 am

7 Replies

1172 Views

Last post by marktownley
Wed Dec 19, 2018 10:32 am
Dimensions of 40mm SolarMax II H-Alpha Double Stacking Etalon

Last post by Okay-1 « Fri Dec 07, 2018 3:19 am

by Okay-1 » Fri Dec 07, 2018 3:19 am

0 Replies

754 Views

Last post by Okay-1
Fri Dec 07, 2018 3:19 am
Dismantling and modification of a PST CaK

Last post by bart1805 « Tue Dec 04, 2018 9:50 pm
Replies: 29
by bart1805 » Sat Oct 13, 2018 11:54 am
1

2
29 Replies

4219 Views

Last post by bart1805
Tue Dec 04, 2018 9:50 pm
Re: The Double pass idea...

Last post by antonello « Tue Nov 27, 2018 7:50 am
Replies: 13
by p_zetner » Thu Aug 16, 2018 10:03 pm

13 Replies

2988 Views

Last post by antonello
Tue Nov 27, 2018 7:50 am
Orange coated PST pentaprism

Last post by marktownley « Mon Nov 26, 2018 6:59 am
Replies: 1
by bart1805 » Sun Nov 25, 2018 10:36 pm

1 Replies

576 Views

Last post by marktownley
Mon Nov 26, 2018 6:59 am
optical contact experiments? Anybody?

Last post by marktownley « Sun Nov 25, 2018 9:40 am
Replies: 4
by LTHB » Mon Nov 19, 2018 9:44 pm

4 Replies

1096 Views

Last post by marktownley
Sun Nov 25, 2018 9:40 am
Where to go from here to maximize results (Histogram, etc.).

Last post by Starry Jack « Fri Nov 16, 2018 6:29 pm
Replies: 12
by Starry Jack » Thu Nov 08, 2018 1:53 am

12 Replies

1695 Views

Last post by Starry Jack
Fri Nov 16, 2018 6:29 pm
Lunt CaK B1200 + PST #1 yellow

Last post by Valery « Tue Nov 13, 2018 6:13 pm
Replies: 6
by george9 » Mon Oct 01, 2018 12:02 am

6 Replies

1318 Views

Last post by Valery
Tue Nov 13, 2018 6:13 pm
Finally getting to PST Stage 2 Mod

Last post by Merlin66 « Sun Nov 11, 2018 2:07 am
Replies: 1
by twhite » Sat Nov 10, 2018 11:04 pm

1 Replies

581 Views

Last post by Merlin66
Sun Nov 11, 2018 2:07 am
Pst Cak filter secret -

Last post by marktownley « Wed Nov 07, 2018 8:59 pm
Replies: 10
by Valery » Wed Oct 03, 2018 9:07 pm

10 Replies

1976 Views

Last post by marktownley
Wed Nov 07, 2018 8:59 pm
Narrowest 393.37 ever by Apollo Lasky

Last post by highfnum « Sun Nov 04, 2018 7:30 pm
Replies: 117
by Valery » Thu Jun 21, 2018 1:18 am
1

2

3

4

5
117 Replies

16460 Views

Last post by highfnum
Sun Nov 04, 2018 7:30 pm
My New BinChannel ERF

Last post by ThomasHu « Thu Nov 01, 2018 12:40 am
Replies: 13
by ThomasHu » Mon Oct 29, 2018 2:46 pm

13 Replies

1771 Views

Last post by ThomasHu
Thu Nov 01, 2018 12:40 am
X-truder 2.0 -Baader Planetarium Quadrant!

Last post by marktownley « Mon Oct 29, 2018 9:44 am

by marktownley » Mon Oct 29, 2018 9:44 am

0 Replies

766 Views

Last post by marktownley
Mon Oct 29, 2018 9:44 am
CAK eyepiece modification

Last post by highfnum « Sat Oct 27, 2018 9:55 pm
Replies: 11
by DSobserver » Thu Jan 28, 2016 12:08 am

11 Replies

2805 Views

Last post by highfnum
Sat Oct 27, 2018 9:55 pm
How to double stack a Lunt CaK Module? And ERF?

Last post by MalVeauX « Thu Oct 18, 2018 1:08 pm
Replies: 24
by MalVeauX » Mon Aug 20, 2018 8:22 pm

24 Replies

3222 Views

Last post by MalVeauX
Thu Oct 18, 2018 1:08 pm
PST CaK mod

Last post by Marsman « Sun Oct 14, 2018 7:41 pm
Replies: 12
by Marsman » Sun Apr 29, 2018 8:17 pm

12 Replies

3746 Views

Last post by Marsman
Sun Oct 14, 2018 7:41 pm
152mm PST Stage 2 Mod has Begun

Last post by Starry Jack « Sat Oct 13, 2018 1:17 pm
Replies: 7
by Starry Jack » Thu Oct 04, 2018 12:57 am

7 Replies

1411 Views

Last post by Starry Jack
Sat Oct 13, 2018 1:17 pm
Mersenne telescope design

Last post by Bob Yoesle « Thu Oct 11, 2018 9:01 am
Replies: 1
by bandazar » Wed Oct 10, 2018 5:56 am

1 Replies

754 Views

Last post by Bob Yoesle
Thu Oct 11, 2018 9:01 am
PST Mods... but, why not a 40mm SolarMax Mod?

Last post by MalVeauX « Wed Oct 10, 2018 8:28 pm
Replies: 10
by MalVeauX » Sun Oct 07, 2018 6:33 pm

10 Replies

1385 Views

Last post by MalVeauX
Wed Oct 10, 2018 8:28 pm
New Lunt Mod

Last post by MapleRidge « Sat Oct 06, 2018 3:29 pm
Replies: 9
by MapleRidge » Fri Oct 05, 2018 4:47 pm

9 Replies

1319 Views

Last post by MapleRidge
Sat Oct 06, 2018 3:29 pm
⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Last post by Bob Yoesle « Fri Oct 05, 2018 6:30 pm
Replies: 5
by MalVeauX » Thu Oct 04, 2018 9:52 am

5 Replies

1058 Views

Last post by Bob Yoesle
Fri Oct 05, 2018 6:30 pm
another PST stage 2 mod

Last post by marktownley « Thu Oct 04, 2018 5:07 pm
Replies: 34
by pedro » Mon Aug 13, 2018 8:16 pm
1

2
34 Replies

4124 Views

Last post by marktownley
Thu Oct 04, 2018 5:07 pm
Details of a telecentric lens for C8 Edge and Daystar filter

Last post by Bob Yoesle « Wed Oct 03, 2018 3:12 am
Replies: 10
by p_zetner » Thu Jul 05, 2018 7:35 pm

10 Replies

2074 Views

Last post by Bob Yoesle
Wed Oct 03, 2018 3:12 am
Blocking Filter DIY replacement

Last post by Starry Jack « Mon Oct 01, 2018 2:27 pm
Replies: 2
by ronatu » Mon Sep 24, 2018 2:49 pm

2 Replies

771 Views

Last post by Starry Jack
Mon Oct 01, 2018 2:27 pm
To Mod or not to Mod? To purchase or not to purchase?

Last post by Starry Jack « Mon Oct 01, 2018 3:45 am
Replies: 6
by Starry Jack » Sun Sep 30, 2018 6:45 pm

6 Replies

899 Views

Last post by Starry Jack
Mon Oct 01, 2018 3:45 am
Blocking Filter, Mini ERFs and Alternatives

Last post by christian viladrich « Sun Sep 30, 2018 3:24 pm
Replies: 176
by marktownley » Tue Mar 06, 2012 10:33 pm
1

…

4

5

6

7

8
176 Replies

11025 Views

Last post by christian viladrich
Sun Sep 30, 2018 3:24 pm
Coronado BF15 dies and resurected!

Last post by ronatu « Wed Sep 26, 2018 9:43 pm
Replies: 9
by Merlin66 » Thu Oct 27, 2016 5:51 am

9 Replies

2091 Views

Last post by ronatu
Wed Sep 26, 2018 9:43 pm
PST blocking filter specs.

Last post by marktownley « Mon Sep 24, 2018 6:02 pm
Replies: 25
by Robert Henry 1355 » Wed Jan 25, 2017 11:19 pm
1

2
25 Replies

4200 Views

Last post by marktownley
Mon Sep 24, 2018 6:02 pm
Replacing the Rusted BF30 Filter

Last post by Merlin66 « Sun Sep 23, 2018 10:26 pm
Replies: 49
by GeorgeIonas » Tue May 08, 2018 7:59 pm
1

2
49 Replies

5938 Views

Last post by Merlin66
Sun Sep 23, 2018 10:26 pm
Calcium K-line doublepass by apollo lasky

Last post by marktownley « Sun Sep 23, 2018 10:17 pm
Replies: 1
by marktownley » Sun Sep 23, 2018 10:00 pm

1 Replies

1066 Views

Last post by marktownley
Sun Sep 23, 2018 10:17 pm
A different PST Mod

Last post by pedro « Mon Sep 17, 2018 12:20 pm
Replies: 4
by pedro » Fri Sep 14, 2018 10:20 pm

4 Replies

1170 Views

Last post by pedro
Mon Sep 17, 2018 12:20 pm
Lacerta Wedge plus Lunt diagonal

Last post by bart1805 « Mon Sep 10, 2018 9:02 pm
Replies: 4
by bart1805 » Tue Sep 04, 2018 9:30 pm

4 Replies

918 Views

Last post by bart1805
Mon Sep 10, 2018 9:02 pm
Lunt LS50THa modification to 200 mm aperture

Last post by MalVeauX « Sat Sep 08, 2018 12:23 pm
Replies: 7
by GreatAttractor » Thu Sep 06, 2018 8:17 pm

7 Replies

1465 Views

Last post by MalVeauX
Sat Sep 08, 2018 12:23 pm
How I made my own Lunt mod

Last post by krakatoa1883 « Thu Sep 06, 2018 10:18 am
Replies: 15
by krakatoa1883 » Wed Aug 22, 2018 12:47 pm

15 Replies

2252 Views

Last post by krakatoa1883
Thu Sep 06, 2018 10:18 am
KG3 IR Absorption vs IR Blocking filters? Same?

Last post by krakatoa1883 « Wed Aug 22, 2018 12:00 pm
Replies: 41
by MalVeauX » Wed Apr 11, 2018 4:59 pm
1

2
41 Replies

7614 Views

Last post by krakatoa1883
Wed Aug 22, 2018 12:00 pm
Do you have a skybender?

Last post by MalVeauX « Mon Aug 20, 2018 7:51 pm
Replies: 11
by MalVeauX » Thu May 10, 2018 4:27 pm

11 Replies

3365 Views

Last post by MalVeauX
Mon Aug 20, 2018 7:51 pm
Baader Telecentric - Lower flux in blue/CaK?

Last post by allhoest « Tue Jul 03, 2018 7:14 pm
Replies: 4
by allhoest » Sun Jul 01, 2018 7:42 pm

4 Replies

1542 Views

Last post by allhoest
Tue Jul 03, 2018 7:14 pm
Can i use my EDGEHD800 for Ha?

Last post by AndiesHandyHandies « Sun Jul 01, 2018 5:47 pm
Replies: 10
by Taipan » Wed Apr 25, 2018 5:58 pm

10 Replies

2019 Views

Last post by AndiesHandyHandies
Sun Jul 01, 2018 5:47 pm
PST stage 4. The X-truder

Last post by marktownley « Fri Jun 29, 2018 7:41 pm
Replies: 6
by marktownley » Thu May 24, 2018 5:03 am

6 Replies

3026 Views

Last post by marktownley
Fri Jun 29, 2018 7:41 pm
Finally testing new CaK filter stack

Last post by Merlin66 « Sat Jun 23, 2018 9:00 am
Replies: 12
by Merlin66 » Fri Jun 22, 2018 1:43 am

12 Replies

1869 Views

Last post by Merlin66
Sat Jun 23, 2018 9:00 am
Pst objective - 46mm and 52mm

Last post by marktownley « Sun Jun 17, 2018 9:29 pm

by marktownley » Sun Jun 17, 2018 9:29 pm

0 Replies

906 Views

Last post by marktownley
Sun Jun 17, 2018 9:29 pm
66245 Heatsink mirror mount for 81045

Last post by Valery « Fri Jun 15, 2018 3:31 pm
Replies: 1
by MalVeauX » Fri Jun 15, 2018 1:59 pm

1 Replies

1223 Views

Last post by Valery
Fri Jun 15, 2018 3:31 pm
The 81045 energy rejection mirror

Last post by christian viladrich « Thu Jun 14, 2018 7:15 pm

by christian viladrich » Thu Jun 14, 2018 7:15 pm

0 Replies

1230 Views

Last post by christian viladrich
Thu Jun 14, 2018 7:15 pm
WILL IT BURN? - ..Filter Killer..

Last post by christian viladrich « Tue Jun 05, 2018 7:52 pm
Replies: 13
by mdwmark » Mon May 28, 2018 9:37 pm

13 Replies

3106 Views

Last post by christian viladrich
Tue Jun 05, 2018 7:52 pm
TWO MODELS OF PST CAK!? 1.0 and 2.0?

Last post by marktownley « Tue Jun 05, 2018 5:09 am

by marktownley » Tue Jun 05, 2018 5:09 am

0 Replies

1037 Views

Last post by marktownley
Tue Jun 05, 2018 5:09 am
Lunt CaK B1800, inside visual inspection

Last post by allhoest « Sat May 26, 2018 7:17 pm
Replies: 14
by allhoest » Mon Mar 12, 2018 8:38 pm

14 Replies

2908 Views

Last post by allhoest
Sat May 26, 2018 7:17 pm
Lunt CaK Mod - Removing Etalon's adapter

Last post by allhoest « Sat May 26, 2018 6:46 pm
Replies: 3
by allhoest » Thu May 24, 2018 5:58 pm

3 Replies

1055 Views

Last post by allhoest
Sat May 26, 2018 6:46 pm
CHEAPEST Extension Tube

Last post by marktownley « Wed May 23, 2018 10:18 pm

by marktownley » Wed May 23, 2018 10:18 pm

0 Replies

1249 Views

Last post by marktownley
Wed May 23, 2018 10:18 pm
Vixen VMC110L F9.4 Maksutov as Solar Scope?

Last post by marktownley « Tue May 22, 2018 11:35 am
Replies: 28
by AndiesHandyHandies » Fri Mar 30, 2018 7:49 am
1

2
28 Replies

3914 Views

Last post by marktownley
Tue May 22, 2018 11:35 am
A high quality telecentric 3X made by itself

Last post by mdwmark « Mon May 07, 2018 8:15 pm
Replies: 15
by antonello » Thu Feb 08, 2018 12:29 pm

15 Replies

2957 Views

Last post by mdwmark
Mon May 07, 2018 8:15 pm
lenses / objectives / mirrors for below 405nm

Last post by christian viladrich « Sun May 06, 2018 9:26 am
Replies: 2
by Merlin66 » Sun May 06, 2018 6:43 am

2 Replies

1161 Views

Last post by christian viladrich
Sun May 06, 2018 9:26 am
Make a native F30 telescope better for Solar

Last post by marktownley « Thu May 03, 2018 9:30 pm
Replies: 10
by AndiesHandyHandies » Sat Apr 21, 2018 7:05 am

10 Replies

1689 Views

Last post by marktownley
Thu May 03, 2018 9:30 pm
Maier or Beloptik PST

Last post by Merlin66 « Tue May 01, 2018 12:33 pm
Replies: 5
by 39N84W » Mon Apr 30, 2018 7:07 pm

5 Replies

1312 Views

Last post by Merlin66
Tue May 01, 2018 12:33 pm
PST version and ERF insurance

Last post by Merlin66 « Mon Apr 30, 2018 11:32 pm
Replies: 1
by AndiesHandyHandies » Mon Apr 30, 2018 9:15 pm

1 Replies

773 Views

Last post by Merlin66
Mon Apr 30, 2018 11:32 pm
Looking for guidance in double-stacking an SM90 from inside a TV102i

Last post by danpro1 « Sat Apr 21, 2018 2:30 pm
Replies: 4
by danpro1 » Sat Apr 14, 2018 11:37 pm

4 Replies

1207 Views

Last post by danpro1
Sat Apr 21, 2018 2:30 pm
Solar sunglasses

Last post by marktownley « Sun Apr 15, 2018 8:49 am
Replies: 4
by ausguerila » Wed Apr 11, 2018 10:54 am

4 Replies

1118 Views

Last post by marktownley
Sun Apr 15, 2018 8:49 am
Maier ITF - first failure?!

Last post by DavidG « Tue Apr 10, 2018 10:01 pm
Replies: 12
by Merlin66 » Tue Apr 03, 2018 5:12 am

12 Replies

2249 Views

Last post by DavidG
Tue Apr 10, 2018 10:01 pm
Lunk CaK first mod

Last post by marktownley « Tue Apr 10, 2018 7:36 pm
Replies: 3
by allhoest » Sun Apr 08, 2018 3:33 pm

3 Replies

971 Views

Last post by marktownley
Tue Apr 10, 2018 7:36 pm
PST Stage 2 Mod - Upgrade

Last post by Merlin66 « Sun Apr 08, 2018 1:12 am
Replies: 7
by Merlin66 » Sat Mar 31, 2018 12:30 am

7 Replies

1494 Views

Last post by Merlin66
Sun Apr 08, 2018 1:12 am
New pst mod

Last post by Live_Steam_Mad « Wed Mar 28, 2018 12:01 pm
Replies: 12
by manu41 » Sat Mar 22, 2014 1:11 pm

12 Replies

3167 Views

Last post by Live_Steam_Mad
Wed Mar 28, 2018 12:01 pm
Lunt 60 mod options??

Last post by Macavity « Sat Mar 24, 2018 9:34 am
Replies: 21
by Eddie » Mon Jan 15, 2018 10:46 pm

21 Replies

3116 Views

Last post by Macavity
Sat Mar 24, 2018 9:34 am
SM60 -PST Mod double stack on ED80

Last post by marktownley « Sun Mar 04, 2018 7:11 pm
Replies: 18
by Merlin66 » Sun Jan 28, 2018 12:56 am

18 Replies

2646 Views

Last post by marktownley
Sun Mar 04, 2018 7:11 pm
Request advice on double stacking a new Meade SM90 to Coronado SM90

Last post by Bob Yoesle « Sat Feb 03, 2018 3:12 pm
Replies: 16
by CarlDD » Sun May 07, 2017 8:22 pm

16 Replies

3156 Views

Last post by Bob Yoesle
Sat Feb 03, 2018 3:12 pm
DIY Solar Scintillation Seeing Monitor with FC support

Last post by banjo « Sat Jan 20, 2018 10:48 am
Replies: 113
by RTJoe » Fri Jul 03, 2015 4:47 pm
1

2

3

4

5
113 Replies

23791 Views

Last post by banjo
Sat Jan 20, 2018 10:48 am
Concept model of new 12" Solar Newton

Last post by CarlDD « Sat Dec 09, 2017 12:58 am
Replies: 51
by [whrudey] » Tue May 31, 2016 6:16 pm
1

2

3
51 Replies

10998 Views

Last post by CarlDD
Sat Dec 09, 2017 12:58 am
Aperture fever and (im)possibilities of a mod

Last post by HansH « Fri Dec 08, 2017 11:35 am
Replies: 2
by HansH » Fri Dec 08, 2017 9:17 am

2 Replies

899 Views

Last post by HansH
Fri Dec 08, 2017 11:35 am
The role of the diagonal mirror in the Coronado BF10 and BF15 filters.

Last post by Merlin66 « Wed Dec 06, 2017 11:35 pm
Replies: 5
by Valery » Wed Dec 06, 2017 9:43 am

5 Replies

1161 Views

Last post by Merlin66
Wed Dec 06, 2017 11:35 pm
SM40 crayford?

Last post by hopes2 « Wed Nov 22, 2017 6:44 pm
Replies: 4
by hopes2 » Sun Nov 12, 2017 3:24 am

4 Replies

1124 Views

Last post by hopes2
Wed Nov 22, 2017 6:44 pm
Disassemble Coronado Blocking Filter

Last post by hopes2 « Wed Nov 22, 2017 5:14 pm
Replies: 4
by hopes2 » Mon Nov 20, 2017 4:35 pm

4 Replies

1203 Views

Last post by hopes2
Wed Nov 22, 2017 5:14 pm
Strange Solar reactions with a 60 mm Lunt MOD

Last post by marktownley « Mon Nov 20, 2017 7:15 pm
Replies: 1
by solarmax2016 » Mon Nov 20, 2017 6:45 pm

1 Replies

902 Views

Last post by marktownley
Mon Nov 20, 2017 7:15 pm
Back after a tough absence

Last post by JohnM « Sat Oct 21, 2017 3:32 pm
Replies: 4
by JohnM » Fri Oct 20, 2017 11:03 pm

4 Replies

1102 Views

Last post by JohnM
Sat Oct 21, 2017 3:32 pm
150mm PST mod

Last post by bart1805 « Thu Oct 19, 2017 3:11 pm
Replies: 2
by bart1805 » Wed Oct 18, 2017 10:16 pm

2 Replies

1264 Views

Last post by bart1805
Thu Oct 19, 2017 3:11 pm
Frankencope Tests! (Apologies for absence)

Last post by marktownley « Mon Oct 16, 2017 8:10 pm
Replies: 2
by Macavity » Fri Aug 18, 2017 10:44 am

2 Replies

1382 Views

Last post by marktownley
Mon Oct 16, 2017 8:10 pm
Show me your lunt solar mods

Last post by Macavity « Mon Oct 16, 2017 9:06 am
Replies: 4
by marktownley » Mon Oct 09, 2017 6:52 pm

4 Replies

1762 Views

Last post by Macavity
Mon Oct 16, 2017 9:06 am
Doublestack with LS50F?

Last post by marktownley « Thu Oct 05, 2017 5:19 am
Replies: 4
by bart1805 » Thu Aug 10, 2017 7:19 pm

4 Replies

1409 Views

Last post by marktownley
Thu Oct 05, 2017 5:19 am
Basic question about Coronado Blocking filter

Last post by rsfoto « Tue Oct 03, 2017 6:37 pm
Replies: 13
by rsfoto » Sun Sep 17, 2017 3:02 pm

13 Replies

2688 Views

Last post by rsfoto
Tue Oct 03, 2017 6:37 pm
Omega CaK stack

Last post by Merlin66 « Sun Sep 24, 2017 10:32 pm
Replies: 9
by Merlin66 » Sat Sep 23, 2017 12:46 am

9 Replies

1903 Views

Last post by Merlin66
Sun Sep 24, 2017 10:32 pm
What does a "blocking filter" consist of... ?

Last post by Merlin66 « Fri Sep 22, 2017 11:10 pm
Replies: 13
by Macavity » Wed Aug 30, 2017 9:58 am

13 Replies

2947 Views

Last post by Merlin66
Fri Sep 22, 2017 11:10 pm
Removing barlow from Quark

Last post by LTHB « Thu Sep 21, 2017 8:52 am
Replies: 17
by sulcis2000 » Mon May 01, 2017 9:03 pm

17 Replies

4841 Views

Last post by LTHB
Thu Sep 21, 2017 8:52 am
PST Mod on a SCT

Last post by marktownley « Sun Sep 10, 2017 8:57 pm
Replies: 4
by MapleRidge » Fri Sep 08, 2017 11:16 pm

4 Replies

1231 Views

Last post by marktownley
Sun Sep 10, 2017 8:57 pm
PST Solarscope Modifications

Last post by Merlin66 « Sun Sep 10, 2017 6:35 am
Replies: 1
by williamhawk » Sun Sep 10, 2017 5:44 am

1 Replies

957 Views

Last post by Merlin66
Sun Sep 10, 2017 6:35 am
to Quark or not to Quark??

Last post by MapleRidge « Sun Aug 20, 2017 2:23 am
Replies: 3
by Eddie » Thu Aug 17, 2017 10:29 pm

3 Replies

1186 Views

Last post by MapleRidge
Sun Aug 20, 2017 2:23 am
Focuser upgrade for my Lunt LS50 H-Alpha Scope

Last post by Live_Steam_Mad « Wed Aug 16, 2017 4:22 pm
Replies: 21
by saguaro » Fri Apr 24, 2015 1:56 am

21 Replies

7073 Views

Last post by Live_Steam_Mad
Wed Aug 16, 2017 4:22 pm
Lunt Mod

Last post by bart1805 « Tue Aug 15, 2017 6:50 pm
Replies: 7
by solarmax2016 » Sat Jun 03, 2017 2:45 am

7 Replies

2081 Views

Last post by bart1805
Tue Aug 15, 2017 6:50 pm
How to remove internal reflections

Last post by Merlin66 « Mon Aug 14, 2017 2:42 pm
Replies: 3
by DJD » Sun Aug 13, 2017 1:49 pm

3 Replies

1135 Views

Last post by Merlin66
Mon Aug 14, 2017 2:42 pm
PST ERF

Last post by Solar B « Sat Aug 12, 2017 5:38 pm
Replies: 2
by Solar B » Sat Aug 12, 2017 1:34 pm

2 Replies

1031 Views

Last post by Solar B
Sat Aug 12, 2017 5:38 pm
Mod TS 152/900 Individual

Last post by Galosimo « Fri Aug 11, 2017 10:04 pm
Replies: 45
by Galosimo » Tue May 05, 2015 8:44 pm
1

2
45 Replies

6956 Views

Last post by Galosimo
Fri Aug 11, 2017 10:04 pm
Have Etalon Will Travel

Last post by Okay-1 « Tue Aug 08, 2017 8:43 pm
Replies: 5
by Okay-1 » Mon Aug 07, 2017 12:01 am

5 Replies

1570 Views

Last post by Okay-1
Tue Aug 08, 2017 8:43 pm
BF10 blocking filter straight through adapter

Last post by marktownley « Sat Aug 05, 2017 2:43 pm
Replies: 14
by DJD » Mon Jul 24, 2017 10:42 am

14 Replies

2424 Views

Last post by marktownley
Sat Aug 05, 2017 2:43 pm
$200 Lunt LS50 w/ 2''Baader Steeltrack focuser mod.

Last post by soulvagabond « Sat Jul 15, 2017 4:25 pm
Replies: 2
by soulvagabond » Sat Jul 15, 2017 9:55 am

2 Replies

1393 Views

Last post by soulvagabond
Sat Jul 15, 2017 4:25 pm
Final Assembly LUNT 60 mm Pressure tuned MOD

Last post by marktownley « Fri Jul 14, 2017 5:11 am
Replies: 18
by solarmax2016 » Fri May 12, 2017 6:15 pm

18 Replies

4065 Views

Last post by marktownley
Fri Jul 14, 2017 5:11 am
Lunt Engineering focuser with Quark question

Last post by Robert Henry 1355 « Wed Jul 12, 2017 12:57 am

by Robert Henry 1355 » Wed Jul 12, 2017 12:57 am

0 Replies

1195 Views

Last post by Robert Henry 1355
Wed Jul 12, 2017 12:57 am
Omega 656.3 H Alpha 0.15nm filter as a DS eyepiece filter.

Last post by soulvagabond « Sat Jul 08, 2017 6:10 am

by soulvagabond » Sat Jul 08, 2017 6:10 am

0 Replies

1447 Views

Last post by soulvagabond
Sat Jul 08, 2017 6:10 am
Bresser 127/1200 Stage 2 Mod

Last post by FRAZ « Sat Jun 17, 2017 8:56 pm
Replies: 8
by FRAZ » Mon May 29, 2017 6:25 pm

8 Replies

2013 Views

Last post by FRAZ
Sat Jun 17, 2017 8:56 pm
Mirror coating for Hα reflection

Last post by GreatAttractor « Wed Jun 14, 2017 10:10 pm
Replies: 2
by GreatAttractor » Fri Jun 09, 2017 11:33 am

2 Replies

1007 Views

Last post by GreatAttractor
Wed Jun 14, 2017 10:10 pm
Lunt LS50+Visionking 80mm/F7.5 MOD And Questions...

Last post by soulvagabond « Sun Jun 11, 2017 8:20 pm
Replies: 4
by soulvagabond » Tue Jun 06, 2017 7:56 am

4 Replies

1632 Views

Last post by soulvagabond
Sun Jun 11, 2017 8:20 pm
Need a full disc HA sidekick (PST/Quark/??)

Last post by MalVeauX « Tue Jun 06, 2017 1:46 pm
Replies: 7
by MalVeauX » Sat May 27, 2017 8:57 pm

7 Replies

1587 Views

Last post by MalVeauX
Tue Jun 06, 2017 1:46 pm
My observation on Quark with Lunt BF600 diagonal

Last post by soulvagabond « Sun Jun 04, 2017 2:17 pm
Replies: 2
by soulvagabond » Tue May 30, 2017 8:00 am

2 Replies

1028 Views

Last post by soulvagabond
Sun Jun 04, 2017 2:17 pm
Celestron 6" Schmidt Cassegrain (SCT) with Coronado Personal Solar Telescope (PST)

Last post by Merlin66 « Sun Jun 04, 2017 2:03 pm
Replies: 2
by juhheng » Tue May 30, 2017 1:46 pm

2 Replies

1208 Views

Last post by Merlin66
Sun Jun 04, 2017 2:03 pm
Lunt 50 with >100mm Lense

Last post by bhavani123 « Wed May 31, 2017 3:58 am
Replies: 8
by amendola » Thu May 04, 2017 5:16 pm

8 Replies

1929 Views

Last post by bhavani123
Wed May 31, 2017 3:58 am
How to Calculate Sun diameter inside Light Cone?

Last post by kornfeld « Fri May 05, 2017 1:30 pm
Replies: 10
by Brett » Sun Sep 20, 2015 1:00 pm

10 Replies

2320 Views

Last post by kornfeld
Fri May 05, 2017 1:30 pm
Double stacking PST/Quark question

Last post by kornfeld « Wed May 03, 2017 1:27 pm
Replies: 3
by gabrieli » Sun Apr 30, 2017 12:05 pm

3 Replies

1337 Views

Last post by kornfeld
Wed May 03, 2017 1:27 pm
LUNT 50 MOD,..ADVICE NEEDED

Last post by grdc65 « Sun Apr 30, 2017 2:00 am

by grdc65 » Sun Apr 30, 2017 2:00 am

0 Replies

1390 Views

Last post by grdc65
Sun Apr 30, 2017 2:00 am
Lunt 60FHa with EdgeHD 8

Last post by amendola « Thu Apr 27, 2017 9:01 pm
Replies: 4
by amendola » Mon Apr 24, 2017 9:01 pm

4 Replies

1424 Views

Last post by amendola
Thu Apr 27, 2017 9:01 pm
New hard-coated filters from Andover

Last post by fjabet « Thu Apr 20, 2017 9:51 am
Replies: 11
by Bob Yoesle » Tue Jan 24, 2017 5:19 pm

11 Replies

3050 Views

Last post by fjabet
Thu Apr 20, 2017 9:51 am
CORONADO DS ETALON on a LUNTLs50HTa

Last post by marktownley « Sun Apr 16, 2017 8:44 am
Replies: 1
by grdc65 » Sun Apr 16, 2017 7:39 am

1 Replies

968 Views

Last post by marktownley
Sun Apr 16, 2017 8:44 am
minor issue with imppg

Last post by marktownley « Mon Apr 10, 2017 8:57 pm
Replies: 9
by rbenton » Tue Apr 04, 2017 6:46 am

9 Replies

1637 Views

Last post by marktownley
Mon Apr 10, 2017 8:57 pm
Coronado BF thread size

Last post by Fenrir « Sat Apr 08, 2017 6:25 pm

by Fenrir » Sat Apr 08, 2017 6:25 pm

0 Replies

1338 Views

Last post by Fenrir
Sat Apr 08, 2017 6:25 pm
Electronic focuser for Lunt

Last post by 04Stefan07 « Fri Apr 07, 2017 10:11 am

by 04Stefan07 » Fri Apr 07, 2017 10:11 am

0 Replies

1307 Views

Last post by 04Stefan07
Fri Apr 07, 2017 10:11 am
USING BINOVIEWERS

Last post by grdc65 « Tue Mar 28, 2017 4:36 am

by grdc65 » Tue Mar 28, 2017 4:36 am

0 Replies

1277 Views

Last post by grdc65
Tue Mar 28, 2017 4:36 am
Quark Chromosphere + Lunt's BF 600

Last post by marktownley « Thu Mar 16, 2017 7:50 pm
Replies: 6
by soulvagabond » Sat Mar 11, 2017 10:58 am

6 Replies

1424 Views

Last post by marktownley
Thu Mar 16, 2017 7:50 pm
Lunt50+Daystar Quark as doublestack?

Last post by soulvagabond « Tue Mar 07, 2017 8:59 pm
Replies: 15
by soulvagabond » Thu Jan 12, 2017 5:05 am

15 Replies

3961 Views

Last post by soulvagabond
Tue Mar 07, 2017 8:59 pm
modif Pst / 150mm

Last post by Merlin66 « Thu Feb 23, 2017 5:34 am
Replies: 5
by banjo » Mon Jan 30, 2017 10:08 am

5 Replies

1862 Views

Last post by Merlin66
Thu Feb 23, 2017 5:34 am
Lunt PT mod- vibration dampening

Last post by Anthony M « Wed Feb 15, 2017 3:22 am
Replies: 5
by Anthony M » Thu Feb 09, 2017 1:28 am

5 Replies

1518 Views

Last post by Anthony M
Wed Feb 15, 2017 3:22 am
Orion 80 mm PST MOD

Last post by marktownley « Sun Jan 29, 2017 10:26 pm
Replies: 3
by solarmax2016 » Sun Jan 29, 2017 2:05 pm

3 Replies

1391 Views

Last post by marktownley
Sun Jan 29, 2017 10:26 pm
ES Focal Extender for Quark mod?

Last post by soulvagabond « Sat Jan 21, 2017 11:33 am
Replies: 2
by LTHB » Sat Jan 07, 2017 4:16 pm

2 Replies

1183 Views

Last post by soulvagabond
Sat Jan 21, 2017 11:33 am
What did I do wrong?

Last post by brebisson « Wed Jan 18, 2017 7:31 pm
Replies: 2
by brebisson » Tue Jan 17, 2017 11:52 am

2 Replies

1410 Views

Last post by brebisson
Wed Jan 18, 2017 7:31 pm
PST question

Last post by Robert Henry 1355 « Mon Jan 16, 2017 11:13 pm
Replies: 12
by Robert Henry 1355 » Sun Jan 08, 2017 3:52 pm

12 Replies

1830 Views

Last post by Robert Henry 1355
Mon Jan 16, 2017 11:13 pm
PST Mod Query and update

Last post by Merlin66 « Mon Jan 09, 2017 3:22 am
Replies: 1
by Sungrazer » Sun Jan 08, 2017 11:00 am

1 Replies

1130 Views

Last post by Merlin66
Mon Jan 09, 2017 3:22 am
Astronomik IR Block filter as internal ERF

Last post by Merlin66 « Wed Dec 28, 2016 9:07 pm
Replies: 12
by Vicchio » Mon Dec 12, 2016 9:03 am

12 Replies

3090 Views

Last post by Merlin66
Wed Dec 28, 2016 9:07 pm
PST Prism Alignment problem - assistance please if possible

Last post by axlefoley « Mon Dec 26, 2016 5:10 am
Replies: 9
by Sungrazer » Sat Dec 17, 2016 6:26 am

9 Replies

2206 Views

Last post by axlefoley
Mon Dec 26, 2016 5:10 am
my "Sunlux" PST mod

Last post by marktownley « Mon Dec 12, 2016 11:35 am
Replies: 5
by astrohardy » Sun Jun 28, 2015 7:18 am

5 Replies

1963 Views

Last post by marktownley
Mon Dec 12, 2016 11:35 am
Piggyback for Lunt LS100?

Last post by rbenton « Fri Dec 09, 2016 6:54 pm

by rbenton » Fri Dec 09, 2016 6:54 pm

0 Replies

1329 Views

Last post by rbenton
Fri Dec 09, 2016 6:54 pm
my little lunt60 mod

Last post by highfnum « Wed Dec 07, 2016 9:24 pm
Replies: 55
by highfnum » Mon Jun 02, 2014 1:06 am
1

2

3
55 Replies

6917 Views

Last post by highfnum
Wed Dec 07, 2016 9:24 pm
Double stack - a standard etalon?

Last post by Bassoon « Sun Nov 27, 2016 4:53 pm
Replies: 2
by Bassoon » Sun Nov 27, 2016 10:21 am

2 Replies

1101 Views

Last post by Bassoon
Sun Nov 27, 2016 4:53 pm
Skywatcher StarTravel 102 + Lunt LS50THa good combo?

Last post by soulvagabond « Fri Nov 25, 2016 8:35 am
Replies: 4
by soulvagabond » Wed Nov 23, 2016 6:06 am

4 Replies

1392 Views

Last post by soulvagabond
Fri Nov 25, 2016 8:35 am
Lunt L60 thread dimensions

Last post by solarmax2016 « Mon Nov 07, 2016 5:07 am
Replies: 19
by _Zakalwe » Wed Apr 23, 2014 7:54 am

19 Replies

3483 Views

Last post by solarmax2016
Mon Nov 07, 2016 5:07 am
PST or Lunt components?

Last post by marktownley « Fri Oct 28, 2016 5:58 pm
Replies: 1
by Bassoon » Fri Oct 28, 2016 11:27 am

1 Replies

971 Views

Last post by marktownley
Fri Oct 28, 2016 5:58 pm
Double stack or refurbish my Daystar Quantum?

Last post by cshahar « Wed Oct 05, 2016 5:44 pm
Replies: 7
by cshahar » Wed Sep 28, 2016 8:18 pm

7 Replies

2026 Views

Last post by cshahar
Wed Oct 05, 2016 5:44 pm
SolarMax internal etalon size (old SM70 and SM90II)

Last post by Sungazer « Wed Oct 05, 2016 9:10 am
Replies: 14
by Pablito » Tue Aug 16, 2016 5:39 pm

14 Replies

4192 Views

Last post by Sungazer
Wed Oct 05, 2016 9:10 am
Planning PSD Mod on Meade LXD55 5" f9.3 1180mm

Last post by marktownley « Tue Oct 04, 2016 5:15 pm
Replies: 17
by nickatnight » Sat Aug 27, 2016 10:39 pm

17 Replies

3379 Views

Last post by marktownley
Tue Oct 04, 2016 5:15 pm
Stacking PST with a quark

Last post by nickatnight « Sat Aug 27, 2016 11:31 pm
Replies: 8
by Solar B » Wed Sep 02, 2015 8:56 am

8 Replies

2357 Views

Last post by nickatnight
Sat Aug 27, 2016 11:31 pm
Single-truss 12" Newtonian for an EQ mount

Last post by marktownley « Tue Aug 23, 2016 7:50 am
Replies: 2
by GreatAttractor » Sun Aug 21, 2016 8:26 am

2 Replies

1469 Views

Last post by marktownley
Tue Aug 23, 2016 7:50 am
And now the H-Alpha Killer, a Lunt-Mod

Last post by solarmax2016 « Sat Aug 20, 2016 4:00 am
Replies: 10
by Solar-Cologne » Sun Nov 15, 2015 1:34 pm

10 Replies

3187 Views

Last post by solarmax2016
Sat Aug 20, 2016 4:00 am
Baader Zoom with LS50

Last post by Cometeer « Fri Aug 12, 2016 10:21 pm

by Cometeer » Fri Aug 12, 2016 10:21 pm

0 Replies

1408 Views

Last post by Cometeer
Fri Aug 12, 2016 10:21 pm
Mounting of DS 40s

Last post by Solar B « Mon Aug 08, 2016 8:18 am
Replies: 20
by Solar B » Fri May 13, 2016 8:27 am

20 Replies

4686 Views

Last post by Solar B
Mon Aug 08, 2016 8:18 am
2nd video - Lunt 60PT f/8.3 to meade LX70 5" f8.3 & BF30

Last post by solarmax2016 « Sun Jul 31, 2016 6:21 pm
Replies: 22
by marktownley » Sun Dec 27, 2015 9:34 pm

22 Replies

6396 Views

Last post by solarmax2016
Sun Jul 31, 2016 6:21 pm
Coronado SM40 Etalon + Lunt B600?

Last post by nicosolcy « Sun Jul 31, 2016 12:26 pm
Replies: 5
by nicosolcy » Sat Jul 30, 2016 3:41 pm

5 Replies

1725 Views

Last post by nicosolcy
Sun Jul 31, 2016 12:26 pm
Barlow and refocus your blocking filter?

Last post by christian viladrich « Mon Jul 11, 2016 6:35 pm
Replies: 2
by Valery » Sun Jul 10, 2016 6:43 am

2 Replies

1383 Views

Last post by christian viladrich
Mon Jul 11, 2016 6:35 pm
what if - h-alpha thru 17th century optics

Last post by highfnum « Tue Jul 05, 2016 9:06 pm
Replies: 9
by highfnum » Mon Jul 04, 2016 9:32 am

9 Replies

1788 Views

Last post by highfnum
Tue Jul 05, 2016 9:06 pm
LS80 Etalon @ a 130mm f/7 Triplet

Last post by tklemmer « Thu Jun 23, 2016 12:07 pm
Replies: 13
by tklemmer » Mon Dec 28, 2015 9:08 pm

13 Replies

3101 Views

Last post by tklemmer
Thu Jun 23, 2016 12:07 pm
Unscrewing the PST Etalon

Last post by pete_w « Wed Jun 22, 2016 7:01 pm
Replies: 6
by pete_w » Thu May 26, 2016 7:49 am

6 Replies

1977 Views

Last post by pete_w
Wed Jun 22, 2016 7:01 pm
ERF's and a Quark +150mm F5 Refractor

Last post by marktownley « Thu Jun 16, 2016 12:39 pm
Replies: 5
by pete_w » Sun May 29, 2016 11:34 am

5 Replies

2006 Views

Last post by marktownley
Thu Jun 16, 2016 12:39 pm
Lunt60PT scope mod - how to double stack?

Last post by GaborKiss « Tue May 31, 2016 7:59 am
Replies: 3
by GaborKiss » Mon May 30, 2016 3:35 pm

3 Replies

1318 Views

Last post by GaborKiss
Tue May 31, 2016 7:59 am
For Gabor

Last post by GaborKiss « Mon May 30, 2016 3:32 pm

by GaborKiss » Mon May 30, 2016 3:32 pm

0 Replies

1356 Views

Last post by GaborKiss
Mon May 30, 2016 3:32 pm
F11 PST scope

Last post by antonello « Mon May 30, 2016 10:32 am
Replies: 18
by Moriniboy » Wed May 11, 2016 6:15 am

18 Replies

2700 Views

Last post by antonello
Mon May 30, 2016 10:32 am
PST vs. Lunt50 mod - which and why?

Last post by GaborKiss « Thu May 26, 2016 10:37 pm
Replies: 4
by GaborKiss » Wed May 25, 2016 3:20 pm

4 Replies

1350 Views

Last post by GaborKiss
Thu May 26, 2016 10:37 pm
Just blocking filters.

Last post by antonello « Tue May 24, 2016 12:18 pm
Replies: 5
by Valery » Tue May 24, 2016 12:13 am

5 Replies

1315 Views

Last post by antonello
Tue May 24, 2016 12:18 pm
First PST Mod Questions and Check

Last post by Bojan « Fri May 20, 2016 3:11 pm
Replies: 6
by Bojan » Tue May 03, 2016 2:42 pm

6 Replies

1714 Views

Last post by Bojan
Fri May 20, 2016 3:11 pm
Baader / Solar Spectrum Telecompressor 0.7x

Last post by Keramos « Mon May 16, 2016 8:22 pm
Replies: 55
by marktownley » Wed Feb 18, 2015 5:44 pm
1

2

3
55 Replies

6342 Views

Last post by Keramos
Mon May 16, 2016 8:22 pm
Quark DSII 155mm

Last post by george9 « Fri May 13, 2016 12:22 pm
Replies: 7
by george9 » Mon Mar 28, 2016 12:32 pm

7 Replies

2277 Views

Last post by george9
Fri May 13, 2016 12:22 pm
Is the blocking filter necessary?

Last post by marktownley « Thu May 12, 2016 5:49 pm
Replies: 2
by NightPhotographer » Thu May 12, 2016 3:16 pm

2 Replies

1155 Views

Last post by marktownley
Thu May 12, 2016 5:49 pm
Lunt LS50THa enhancement

Last post by nabla « Tue May 03, 2016 5:46 am
Replies: 5
by GreatAttractor » Thu Dec 24, 2015 2:21 pm

5 Replies

2744 Views

Last post by nabla
Tue May 03, 2016 5:46 am
Solarmax 40 Problems

Last post by marktownley « Wed Apr 27, 2016 7:57 pm
Replies: 9
by Bojan » Mon Apr 18, 2016 6:01 pm

9 Replies

1743 Views

Last post by marktownley
Wed Apr 27, 2016 7:57 pm
Can a good quark replace blocking filters?

Last post by fjabet « Sat Apr 23, 2016 7:58 am
Replies: 1
by george9 » Thu Apr 21, 2016 3:00 am

1 Replies

1229 Views

Last post by fjabet
Sat Apr 23, 2016 7:58 am
Baader HA 35nm as D-ERF in 60mm PST Mod?

Last post by moonshane « Mon Apr 18, 2016 11:22 am
Replies: 4
by moonshane » Fri Apr 15, 2016 12:43 am

4 Replies

1776 Views

Last post by moonshane
Mon Apr 18, 2016 11:22 am
Making an "integrated U.H.T 393nm focuser"

Last post by marktownley « Thu Apr 14, 2016 8:02 pm

by marktownley » Thu Apr 14, 2016 8:02 pm

0 Replies

1360 Views

Last post by marktownley
Thu Apr 14, 2016 8:02 pm
PST mod with SW Evostar

Last post by s52sk « Thu Apr 14, 2016 7:57 pm
Replies: 4
by s52sk » Sun Apr 10, 2016 6:21 pm

4 Replies

1773 Views

Last post by s52sk
Thu Apr 14, 2016 7:57 pm
Best instruction for PST mod

Last post by Merlin66 « Thu Apr 14, 2016 4:18 pm
Replies: 1
by nickatnight » Thu Apr 14, 2016 7:31 am

1 Replies

1203 Views

Last post by Merlin66
Thu Apr 14, 2016 4:18 pm
ETX90 for CaK Work

Last post by marktownley « Fri Apr 08, 2016 8:01 am
Replies: 7
by marktownley » Mon Apr 04, 2016 1:33 pm

7 Replies

1721 Views

Last post by marktownley
Fri Apr 08, 2016 8:01 am
Lunt LS50THa modification to 90 mm aperture

Last post by GreatAttractor « Tue Apr 05, 2016 9:48 pm
Replies: 4
by GreatAttractor » Mon Apr 04, 2016 8:05 pm

4 Replies

3797 Views

Last post by GreatAttractor
Tue Apr 05, 2016 9:48 pm
Calcium k-line emitter system / UV-ERF-70% \ off the shelf

Last post by marktownley « Tue Apr 05, 2016 8:16 am

by marktownley » Tue Apr 05, 2016 8:16 am

0 Replies

1712 Views

Last post by marktownley
Tue Apr 05, 2016 8:16 am
Advice Needed, Lunt LS35 To Equinox 66

Last post by bilbo « Mon Apr 04, 2016 3:29 pm
Replies: 4
by bilbo » Fri Apr 01, 2016 8:07 pm

4 Replies

1660 Views

Last post by bilbo
Mon Apr 04, 2016 3:29 pm
How much heat applied to the etalon? (quark

Last post by marktownley « Mon Apr 04, 2016 1:29 pm

by marktownley » Mon Apr 04, 2016 1:29 pm

0 Replies

1461 Views

Last post by marktownley
Mon Apr 04, 2016 1:29 pm
Ressurecting a very good calcium k-line thread

Last post by marktownley « Mon Apr 04, 2016 6:15 am
Replies: 1
by Valery » Mon Apr 04, 2016 3:28 am

1 Replies

1046 Views

Last post by marktownley
Mon Apr 04, 2016 6:15 am
PST stage 1 can I remove the black box ERF

Last post by Moriniboy « Thu Mar 31, 2016 7:42 am
Replies: 2
by Moriniboy » Mon Mar 21, 2016 12:11 pm

2 Replies

1321 Views

Last post by Moriniboy
Thu Mar 31, 2016 7:42 am
Pre-Meade SolarMax 40 Mod?

Last post by Solar B « Sun Mar 27, 2016 12:35 pm
Replies: 5
by Bojan » Fri Mar 25, 2016 4:12 pm

5 Replies

1553 Views

Last post by Solar B
Sun Mar 27, 2016 12:35 pm
Determining Scale of the Earth

Last post by Starry Jack « Tue Mar 15, 2016 5:01 pm
Replies: 7
by Starry Jack » Sun Mar 06, 2016 8:07 pm

7 Replies

1556 Views

Last post by Starry Jack
Tue Mar 15, 2016 5:01 pm
Took one for the team. (pressure tuner guts)

Last post by Derek Klepp « Mon Mar 14, 2016 10:30 am
Replies: 5
by _Zakalwe » Sun Feb 28, 2016 11:48 am

5 Replies

1713 Views

Last post by Derek Klepp
Mon Mar 14, 2016 10:30 am
my chromosphere/prom viewer

Last post by DSobserver « Mon Feb 29, 2016 10:03 pm
Replies: 15
by highfnum » Sat Sep 19, 2015 6:30 pm

15 Replies

3615 Views

Last post by DSobserver
Mon Feb 29, 2016 10:03 pm
PST etalon (or similar) in a telecentric beam

Last post by marktownley « Thu Feb 25, 2016 11:31 am
Replies: 86
by Merlin66 » Sat Apr 12, 2014 10:35 pm
1

2

3

4
86 Replies

11850 Views

Last post by marktownley
Thu Feb 25, 2016 11:31 am
Baader D-ERF with Lunt etalon and trimming filter?

Last post by Jdgoguen « Mon Feb 15, 2016 3:55 pm
Replies: 5
by Jdgoguen » Sun Feb 14, 2016 3:44 pm

5 Replies

1561 Views

Last post by Jdgoguen
Mon Feb 15, 2016 3:55 pm
Skywatcher AZ3 Mount modification

Last post by 04Stefan07 « Mon Feb 01, 2016 7:45 am
Replies: 6
by 04Stefan07 » Wed May 20, 2015 3:43 am

6 Replies

1905 Views

Last post by 04Stefan07
Mon Feb 01, 2016 7:45 am
Which Quark for solar scope mod?

Last post by Derek Klepp « Sat Jan 09, 2016 7:52 am
Replies: 3
by Carbon60 » Wed Jan 06, 2016 8:35 pm

3 Replies

1571 Views

Last post by Derek Klepp
Sat Jan 09, 2016 7:52 am
Setup with HaT

Last post by fjabet « Fri Jan 08, 2016 5:57 pm
Replies: 13
by fjabet » Mon Mar 23, 2015 8:49 am

13 Replies

2726 Views

Last post by fjabet
Fri Jan 08, 2016 5:57 pm
quick lunt 60mm question

Last post by Merlin66 « Sun Dec 27, 2015 10:12 pm
Replies: 1
by highfnum » Sun Dec 27, 2015 5:25 pm

1 Replies

958 Views

Last post by Merlin66
Sun Dec 27, 2015 10:12 pm
Lunt Solar 60mm diameter of the etalon

Last post by marktownley « Sat Dec 26, 2015 6:16 pm
Replies: 1
by Kvak » Sat Dec 26, 2015 3:10 pm

1 Replies

1203 Views

Last post by marktownley
Sat Dec 26, 2015 6:16 pm
PST mod Telescope question.

Last post by aboy « Wed Dec 23, 2015 12:30 pm
Replies: 10
by aboy » Sat Dec 19, 2015 2:39 pm

10 Replies

2111 Views

Last post by aboy
Wed Dec 23, 2015 12:30 pm
Magnetic Sol-Searcher mod

Last post by marktownley « Fri Dec 18, 2015 9:41 pm
Replies: 2
by NMBob » Mon Dec 14, 2015 5:17 am

2 Replies

1274 Views

Last post by marktownley
Fri Dec 18, 2015 9:41 pm
Quark mod into combo

Last post by DSobserver « Mon Dec 14, 2015 11:23 pm
Replies: 10
by DSobserver » Wed Dec 09, 2015 1:18 pm

10 Replies

1986 Views

Last post by DSobserver
Mon Dec 14, 2015 11:23 pm
Solar Newtonian 8"

Last post by [whrudey] « Sun Dec 13, 2015 4:44 pm
Replies: 47
by [whrudey] » Mon Nov 23, 2015 5:33 pm
1

2
47 Replies

7366 Views

Last post by [whrudey]
Sun Dec 13, 2015 4:44 pm
Dreaming of a Dichroic Mirror

Last post by michael.h.f.wilkinson « Wed Dec 09, 2015 12:07 pm
Replies: 6
by michael.h.f.wilkinson » Mon Dec 07, 2015 9:17 am

6 Replies

1351 Views

Last post by michael.h.f.wilkinson
Wed Dec 09, 2015 12:07 pm
Last but not least, my biggest Mod

Last post by Solar-Cologne « Sat Nov 21, 2015 3:26 am
Replies: 6
by Solar-Cologne » Wed Nov 18, 2015 3:15 pm

6 Replies

2139 Views

Last post by Solar-Cologne
Sat Nov 21, 2015 3:26 am
H-Alpha Double-Refractor ?

Last post by Solar-Cologne « Tue Nov 17, 2015 11:18 pm
Replies: 9
by Solar-Cologne » Thu Nov 12, 2015 6:35 am

9 Replies

2319 Views

Last post by Solar-Cologne
Tue Nov 17, 2015 11:18 pm
Best donor scope for pst mod?

Last post by Solar-Cologne « Sun Nov 15, 2015 2:08 pm
Replies: 8
by Fenrir » Tue Sep 15, 2015 8:53 pm

8 Replies

2352 Views

Last post by Solar-Cologne
Sun Nov 15, 2015 2:08 pm
My fourth PST-Mod

Last post by Solar-Cologne « Sun Nov 15, 2015 12:38 pm
Replies: 2
by Solar-Cologne » Sun Nov 15, 2015 12:17 pm

2 Replies

1469 Views

Last post by Solar-Cologne
Sun Nov 15, 2015 12:38 pm
Now my third PST-Mod

Last post by marktownley « Sun Nov 15, 2015 12:00 pm
Replies: 2
by Solar-Cologne » Sat Nov 14, 2015 9:24 am

2 Replies

1495 Views

Last post by marktownley
Sun Nov 15, 2015 12:00 pm
From 50 to 60 DS?

Last post by Calavera « Sat Nov 14, 2015 11:21 am
Replies: 23
by Dobber » Tue Oct 27, 2015 7:41 pm

23 Replies

4169 Views

Last post by Calavera
Sat Nov 14, 2015 11:21 am
My second PST-Mod

Last post by marktownley « Sat Nov 14, 2015 8:39 am
Replies: 1
by Solar-Cologne » Fri Nov 13, 2015 5:08 pm

1 Replies

1183 Views

Last post by marktownley
Sat Nov 14, 2015 8:39 am
Budget 150mm ERF .... quark

Last post by Neo « Fri Nov 13, 2015 8:43 pm
Replies: 8
by Solar B » Sat Sep 05, 2015 9:41 pm

8 Replies

1599 Views

Last post by Neo
Fri Nov 13, 2015 8:43 pm
I start with my first PST-Mod

Last post by marktownley « Thu Nov 12, 2015 7:26 pm
Replies: 1
by Solar-Cologne » Thu Nov 12, 2015 12:23 pm

1 Replies

1133 Views

Last post by marktownley
Thu Nov 12, 2015 7:26 pm
pst etalon and my 4 inch F12 refractor

Last post by marktownley « Sun Nov 01, 2015 8:53 am
Replies: 2
by highfnum » Sat Oct 31, 2015 6:11 pm

2 Replies

1209 Views

Last post by marktownley
Sun Nov 01, 2015 8:53 am
Next version of Mod showing great promise

Last post by marktownley « Sun Nov 01, 2015 8:52 am
Replies: 4
by Starry Jack » Mon Oct 26, 2015 12:12 am

4 Replies

1577 Views

Last post by marktownley
Sun Nov 01, 2015 8:52 am
my test using home made 90mm scope and adding pst etalon

Last post by marktownley « Sun Nov 01, 2015 8:51 am
Replies: 5
by highfnum » Thu Oct 22, 2015 11:55 pm

5 Replies

1633 Views

Last post by marktownley
Sun Nov 01, 2015 8:51 am
Baader 60mm f/4.1 Vario Finder SOLAR MOD

Last post by pedro « Sat Oct 31, 2015 9:42 pm
Replies: 6
by pedro » Sat Oct 17, 2015 12:32 pm

6 Replies

1715 Views

Last post by pedro
Sat Oct 31, 2015 9:42 pm
Rusty BF5

Last post by highfnum « Fri Oct 23, 2015 4:23 am
Replies: 7
by Solar B » Fri Oct 02, 2015 7:31 pm

7 Replies

1844 Views

Last post by highfnum
Fri Oct 23, 2015 4:23 am
SM40 neoprene screw

Last post by solarscope180 « Tue Oct 20, 2015 8:49 pm
Replies: 1
by Solar B » Tue Oct 20, 2015 6:42 pm

1 Replies

900 Views

Last post by solarscope180
Tue Oct 20, 2015 8:49 pm
st80 with solarmax 60 double stack front ealon

Last post by Merlin66 « Fri Oct 02, 2015 10:55 pm
Replies: 3
by BertUK » Thu Oct 01, 2015 8:28 pm

3 Replies

1153 Views

Last post by Merlin66
Fri Oct 02, 2015 10:55 pm
Coronado BF30

Last post by Bob Yoesle « Fri Oct 02, 2015 5:08 am
Replies: 1
by Fenrir » Fri Sep 25, 2015 1:52 pm

1 Replies

1141 Views

Last post by Bob Yoesle
Fri Oct 02, 2015 5:08 am
Newton Rings related to stress birefringence?

Last post by Merlin66 « Sat Sep 26, 2015 12:32 am
Replies: 4
by Neo » Wed Sep 23, 2015 10:06 am

4 Replies

1200 Views

Last post by Merlin66
Sat Sep 26, 2015 12:32 am
sm60 double stack

Last post by marktownley « Tue Sep 08, 2015 6:22 pm
Replies: 9
by BertUK » Mon Sep 07, 2015 8:25 pm

9 Replies

1797 Views

Last post by marktownley
Tue Sep 08, 2015 6:22 pm
I have a PST (40mm)... Need to clean scope

Last post by Neo « Thu Sep 03, 2015 10:05 am
Replies: 5
by RonDzen » Sat Aug 29, 2015 3:13 pm

5 Replies

1508 Views

Last post by Neo
Thu Sep 03, 2015 10:05 am
Quark modification- fully screwed connections

Last post by axlefoley « Tue Sep 01, 2015 11:00 am
Replies: 13
by _Zakalwe » Mon Aug 17, 2015 8:29 pm

13 Replies

3228 Views

Last post by axlefoley
Tue Sep 01, 2015 11:00 am
CaK module ERF

Last post by marktownley « Mon Aug 31, 2015 8:22 pm
Replies: 18
by Bob Yoesle » Tue Jun 09, 2015 9:57 pm

18 Replies

4453 Views

Last post by marktownley
Mon Aug 31, 2015 8:22 pm
Etalon reconnecting, Success !!!

Last post by Derek Klepp « Sun Aug 23, 2015 10:34 am
Replies: 5
by DavidG » Sat Aug 22, 2015 4:07 pm

5 Replies

1669 Views

Last post by Derek Klepp
Sun Aug 23, 2015 10:34 am
Recover a tiny BF, it's possible if ?

Last post by Geremia Forino « Sun Aug 23, 2015 7:59 am
Replies: 8
by Geremia Forino » Fri Aug 21, 2015 3:49 pm

8 Replies

1834 Views

Last post by Geremia Forino
Sun Aug 23, 2015 7:59 am
Beloptik to stack a Quark

Last post by Bob Yoesle « Tue Aug 18, 2015 3:24 pm
Replies: 31
by Solar B » Mon Aug 03, 2015 3:45 pm
1

2
31 Replies

5601 Views

Last post by Bob Yoesle
Tue Aug 18, 2015 3:24 pm
Question about back filters (Daystar, Solar spectrum)

Last post by Geremia Forino « Mon Aug 17, 2015 2:06 pm
Replies: 8
by Geremia Forino » Fri Aug 14, 2015 8:10 pm

8 Replies

1999 Views

Last post by Geremia Forino
Mon Aug 17, 2015 2:06 pm
Stacking a PST

Last post by Solar B « Sun Aug 09, 2015 12:06 am
Replies: 5
by Solar B » Sat Aug 08, 2015 11:29 am

5 Replies

1532 Views

Last post by Solar B
Sun Aug 09, 2015 12:06 am
Quark +PST mod

Last post by Valery « Sat Aug 08, 2015 11:07 pm
Replies: 5
by DSobserver » Sat Aug 08, 2015 5:10 pm

5 Replies

1414 Views

Last post by Valery
Sat Aug 08, 2015 11:07 pm

New Topic

808 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum