Search found 348 matches

by AndiesHandyHandies
Thu Jan 14, 2021 10:25 am
Forum: This is SolarChat !!
Topic: Tuesday Sun 12th Jan. 2021
Replies: 12
Views: 117

Re: Tuesday Sun 12th Jan. 2021

Hi

Nice proms as I viewed, especially the first one.

Cheers. Andrew.
by AndiesHandyHandies
Thu Jan 14, 2021 10:25 am
Forum: SPoD Archive
Topic: Tuesday Sun 12th Jan. 2021
Replies: 10
Views: 18

Re: Tuesday Sun 12th Jan. 2021

Hi

Nice proms as I viewed, especially the first one.

Cheers. Andrew.
by AndiesHandyHandies
Wed Jan 13, 2021 3:27 pm
Forum: This is SolarChat !!
Topic: Visual Report 12/01/2021
Replies: 5
Views: 32

Visual Report 12/01/2021

Hi, Lucky to have a clear patch. EQ5 127mm triplet -150mm 35nm KG3 Omega 1.5A Blocker PST +150mm Clave' 2x Barlow Clave' 25mm Could see the Omega is a second looking down, assuming. Tried the ES 2x TE first but not good and not quiet 2x One slightly off axis reflection. Missing faint ones further of...
by AndiesHandyHandies
Sun Jan 10, 2021 4:35 pm
Forum: This is SolarChat !!
Topic: Visual Report 09/01/2021
Replies: 6
Views: 64

Re: Visual Report 09/01/2021

Hi Montana,

Diagonal in both. On EQ5.

Cheers. Andrew.
by AndiesHandyHandies
Sat Jan 09, 2021 8:31 pm
Forum: This is SolarChat !!
Topic: Visual Report 09/01/2021
Replies: 6
Views: 64

Visual Report 09/01/2021

Hi A cold light breeze day today with Sun! Mak180 1800mm 35nm KG3 Omega BF CP 25mm Clave' Could see the proms in Montanas image. Mine inverted and rotated? 12.30 UT The two large ones at 8.30 for me. Under them to start with a small hedge? with bright top and a fine small jet before the two large pr...
by AndiesHandyHandies
Thu Dec 17, 2020 9:15 am
Forum: This is SolarChat !!
Topic: Visiual Report 15/12/2020
Replies: 6
Views: 135

Re: Visiual Report 15/12/2020

Hi Brian,

Well I am pretty much seeing what you imaged. More wispy stuff in the images. The upside down triangle looked very similar.

As I was in testing mode I missed the smaller hedge as did not do a detailed scan round the edge.

Cheers. Andrew.
by AndiesHandyHandies
Thu Dec 17, 2020 9:10 am
Forum: This is SolarChat !!
Topic: Visiual Report 15/12/2020
Replies: 6
Views: 135

Re: Visiual Report 15/12/2020

Hi James, RodAstro says my Santel Mak180 gives me an advantage over people struggling with commercial SCTs or going through many to pick out a good one. Hand made by a professional optician with no moving mirrors. Top right image here shows spot diagrams for my Mak180 https://www.telescope-optics.ne...
by AndiesHandyHandies
Wed Dec 16, 2020 11:26 am
Forum: This is SolarChat !!
Topic: Visiual Report 15/12/2020
Replies: 6
Views: 135

Visiual Report 15/12/2020

Hi Sunny and clear with a light wind. 11.20 UT Santel Mak180 F10 35nm KG3 1.5A Omega Blocker PST Circular Polariser Clave' 25mm 7.30 Gong Large group. Nice and crisp. Jet leaning down 70deg with little finger underneath. Jet pointing back down from the top longer jet. Pyramid opposite down jet with ...
by AndiesHandyHandies
Thu Dec 03, 2020 9:42 am
Forum: This is SolarChat !!
Topic: Focus issue: ASI174MM PST pairing: redux
Replies: 7
Views: 195

Re: Focus issue: ASI174MM PST pairing: redux

Hi All the pictures of the inside of PSTs I have seen have the penta prism at a slight angle so seem to be made that way. To reduce reflections at the cost of some aberrations I assume. Have Meade ever made a statement about the penta prism angle? The grease over time does contaminate the surfaces. ...
by AndiesHandyHandies
Thu Dec 03, 2020 9:37 am
Forum: This is SolarChat !!
Topic: winter sun photos & animation
Replies: 17
Views: 317

Re: winter sun photos & animation

Hi

Very nice.

A technical point I cannot access the animations in Firefox but they work in Bing.

Same with Stephi's? from France 'image'.

Cheers. Andrew.
by AndiesHandyHandies
Tue Dec 01, 2020 4:33 pm
Forum: This is SolarChat !!
Topic: Visual Report 01/12/2020
Replies: 3
Views: 115

Visual Report 01/12/2020

Hi We had a nice sunny morning with a gentle breeze. Tried the Quark Chromo 4.2x on the 127mm Meade F7.5 Triplet with 32mm Meade SP. 11.30 UT Good details round the two spots. Could see radiating rays as in images. Swapped to Quark Prom 4.2x. Proms brighter with more contrast. The two proms near the...
by AndiesHandyHandies
Sat Nov 28, 2020 10:14 am
Forum: Solar Scope Modifications
Topic: Back-focus issues with a collimated etalon
Replies: 3
Views: 229

Re: Back-focus issues with a collimated etalon

Hi Surely the size of the angle of the sweet spot will not change? The collimator merely changes a converging beam with phase encoded information into a parallel beam with location encoded information and then back into a converging beam with phase encoded information at the same F No so the apparen...
by AndiesHandyHandies
Thu Nov 26, 2020 11:14 pm
Forum: Solar Scope Modifications
Topic: Santel M180 F10 Rumak Maksutov first light
Replies: 48
Views: 18523

Re: Santel M180 F10 Rumak Maksutov first light

Hi Mark, I appreciate that. My point is that the Mak180 at 1800mm FL is at the maximum I consider useable day to day. Just right with 25mm Clave' or 18mm equivalent little bino-viewers. So trying to use a tele-centric barlow with a Quark at a minimum doubles the FL and is not useable. At the moment ...
by AndiesHandyHandies
Thu Nov 26, 2020 4:21 pm
Forum: Solar Scope Modifications
Topic: Santel M180 F10 Rumak Maksutov first light
Replies: 48
Views: 18523

Re: Santel M180 F10 Rumak Maksutov first light

Hi I had a try of my Chromo Quark in a 'collimated' beam. First I had to go to a Baader T2 1.25" diagonal to reach focus with the Quark and the Clave' 25mm eyepiece, and only just or close. I could see sunspots and proms. I put a PST Collimator lens on the Quark nosepiece and the re-focus lens on th...
by AndiesHandyHandies
Mon Nov 23, 2020 5:53 pm
Forum: Solar Scope Modifications
Topic: Back-focus issues with a collimated etalon
Replies: 3
Views: 229

Back-focus issues with a collimated etalon

Hi Using the 200mm focal length and 24.5mm diameter lens with the PST etalon pushed forward to cope with back-focus issues may not be able to be moved far enough forward. You could use a shorter focal length pair say 100mm nearer to the PST etalon and you will just be using 10mm of the etalon apertu...
by AndiesHandyHandies
Mon Nov 23, 2020 9:52 am
Forum: Solar Scope Modifications
Topic: 127mm Meade Triplet Mod
Replies: 18
Views: 4198

Re: 127mm Meade Triplet Mod

Hi For my 8mm collimated beam to go through the side of my Quark Prom I need a pair of -60mm and +60mm lenses. 8mm x F7.5 = 60mm. Add a 7nm second ERF to keep things cool. Laser2000 do two optosigma lenses in 20mm dia. Luckily the cheap Chinese filters I buy for use as 20mm stops with the glass remo...
by AndiesHandyHandies
Sun Nov 22, 2020 10:59 pm
Forum: This is SolarChat !!
Topic: Sunday Sun 22nd November 2020 - AR2783 & FD
Replies: 14
Views: 267

Re: Sunday Sun 22nd November 2020 - AR2783 & FD

Hi

Nice images as usual.

I had a few sights of the big prom whilst having a play with my kit.

At one point it looked like it was made out of lace.

Later it looked like a cock hen standing on the left looking over a hen looking left.

Cheers. Andrew.
by AndiesHandyHandies
Sun Nov 22, 2020 5:08 pm
Forum: Solar Scope Modifications
Topic: Santel M180 F10 Rumak Maksutov first light
Replies: 48
Views: 18523

Re: Santel M180 F10 Rumak Maksutov first light

Hi I have tried out tele-centric barlows on this before and tried my 2x ES Tele-extender and Quark Prom again and whilst it works the image scale is too large for my typical seeing. So I thought can I use my -200mm and +200mm simple lenses for the PST2 Mod2 on here with my Quarks, after getting a si...
by AndiesHandyHandies
Sun Nov 22, 2020 4:53 pm
Forum: Solar Scope Modifications
Topic: 127mm Meade Triplet Mod
Replies: 18
Views: 4198

Re: 127mm Meade Triplet and Quark mod

Hi Been looking at the possibility of using a Quark in a collimated beam after seeing a HAT image with both a PST Mod and a Quark after a Tele-centric so why not the other way round? So I had a try with -150mm and +150mm simple lens set I bought to try my PST Mod2 out on the scope. I managed to set ...
by AndiesHandyHandies
Sun Nov 22, 2020 4:46 pm
Forum: Solar Scope Modifications
Topic: Opticstar 80mm F5 and some solar playing.
Replies: 2
Views: 183

Opticstar 80mm F5 and some solar playing.

Hi I saw a picture for a HAT which showed a PST Mod and a Quark after a Tele-centric. So if it works that way round will a Quark work in a collimated beam? And just to see I thought can you have 'best of both'. Yesterday I had a play setting up my 80mm F5 for tele-centric and collimation all at once...
by AndiesHandyHandies
Sun Nov 22, 2020 4:18 pm
Forum: This is SolarChat !!
Topic: Prominences in different wavelengths and the solar corona
Replies: 22
Views: 563

Re: Prominences in different wavelengths and the solar corona

Hi

Thanks for posting.

I have had a little experience using a prominence scope at Puimichel in France.

Cheers. Andrew.
by AndiesHandyHandies
Sun Nov 22, 2020 4:11 pm
Forum: This is SolarChat !!
Topic: 22.11.2020 New spot SE limb.
Replies: 11
Views: 239

Re: 22.11.2020 New spot SE limb.

I was playing with some scope and filter combinations and saw this as well.

Thanks. Andrew.
by AndiesHandyHandies
Wed Nov 11, 2020 1:05 pm
Forum: Solar Scope Modifications
Topic: Newtonian vs SCT thermal handling with full aperture D-ERF
Replies: 27
Views: 9475

Re: Newtonian vs SCT thermal handling with full aperture D-ERF

Hi

Do the anti-reflection coatings on the SC corrector plate also reflect UV and IR?

RodAstro says lots of telescopes are not suitable for IR imaging bcause of the modern coatings on lenses doing this.
And also far blue like CAK.

Cheers. Andrew.
by AndiesHandyHandies
Wed Nov 11, 2020 12:53 pm
Forum: Solar Scope Modifications
Topic: Basic question about PST etalon to focus spacing.
Replies: 39
Views: 1192

Re: Basic question about PST etalon to focus spacing.

Hi Just to clarify the front mounted PST collimating lens needs to be 200mm in front of the focal plane which will be about 400mm behind the back of the rear adapter plate on the SCT. So you need a low profile fucusser to allow even the low profile T2 Swiss front PST adapter to get the old position ...
by AndiesHandyHandies
Wed Nov 11, 2020 10:03 am
Forum: This is SolarChat !!
Topic: Sun FULL DISK 2020.11.07 Lunt 50 B600 Pressure Tuner
Replies: 12
Views: 333

Re: Sun FULL DISK 2020.11.07 Lunt 50 B600 Pressure Tuner

Hi Thinking about it I could see more details as using a bigger scope. The little white dot for me was two little jagged streams going down from the middle spots on the right and to the right of the bottom spots of the group on the lower left. With clear space between them. And little branches off t...