over the hill prom with edmund 2 inch scope

this is the main message area for anything solar :)
Post Reply
highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1496
Joined: Sat Nov 24, 2012 2:33 pm
Been thanked: 128 times

over the hill prom with edmund 2 inch scope

Post by highfnum » Sun Feb 21, 2021 8:23 pm

qrk F 25
fc2_save_2021-02-21-130954-0000ed2.jpg
fc2_save_2021-02-21-130954-0000ed2.jpg (270.18 KiB) Viewed 137 times



User avatar
marktownley
Librarian
Librarian
Posts: 30294
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 3528 times
Been thanked: 1459 times
Contact:

Re: over the hill prom with edmund 2 inch scope

Post by marktownley » Sun Feb 21, 2021 8:49 pm

That works really well John! Tell us more about the scope you made?


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

User avatar
DeepSolar64
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 4098
Joined: Thu Sep 05, 2019 12:19 am
Location: Edneyville North Carolina U.S.A.
Has thanked: 2137 times
Been thanked: 1981 times

Re: over the hill prom with edmund 2 inch scope

Post by DeepSolar64 » Sun Feb 21, 2021 9:33 pm

Nice!! You had far better luck than I did today. :(


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
ZWO ASI178MM monochrome camera
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

Image Visual Observer
" Way more fun to see it! "

highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1496
Joined: Sat Nov 24, 2012 2:33 pm
Been thanked: 128 times

Re: over the hill prom with edmund 2 inch scope

Post by highfnum » Sun Feb 21, 2021 10:26 pm

scope made in another space time when i was young
Ed2.jpg
Ed2.jpg (304.96 KiB) Viewed 115 times
ed2ins.jpg
ed2ins.jpg (197.17 KiB) Viewed 115 times



highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1496
Joined: Sat Nov 24, 2012 2:33 pm
Been thanked: 128 times

Re: over the hill prom with edmund 2 inch scope

Post by highfnum » Sun Feb 21, 2021 10:32 pm

mount rail and laser pointer mount rail added later in time
used combo qrk chromo for Ha
at F25 works real nice



User avatar
MapleRidge
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 7305
Joined: Fri Jan 13, 2012 11:58 pm
Location: Cambray, ON Canada
Has thanked: 10 times
Been thanked: 674 times
Contact:

Re: over the hill prom with edmund 2 inch scope

Post by MapleRidge » Sun Feb 21, 2021 10:38 pm

Nice catch of the fila-prom!!!

Brian


Brian Colville

Maple Ridge Observatory
Cambray, ON Canada

Photos: https://www.flickr.com/photos/185395281@N08/albums

10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C9.25 Edge + Stellarvue 110, f7 or C14
Deep Sky Work - Canon 60D (Ha mod), SBIG STF8300/FW8, ONAG
Planetary Work - SBIG CFW10, ASI290MM/ASI462+ADC

8' Diameter Dome
MI250 Mount carrying:
iStar 150mm, f8 OTA Modular Setup
Ha configuration: 2xDSII/B1800Ha/Daystar ERF as modded Ha Scope
WL & CaK configuration: Lunt WL Wedge or Modded B1800CaK Wedge
Lunt LS80PT/LS75FHa/B1200Ha
Daystar Quantum 0.45A SE, Quark Combo Chromosphere,
ASI1600MM, ASI174MM, ASI290MM, PGR Grasshopper Express

highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1496
Joined: Sat Nov 24, 2012 2:33 pm
Been thanked: 128 times

Re: over the hill prom with edmund 2 inch scope

Post by highfnum » Sun Feb 21, 2021 11:00 pm

im a crazy puppy
still have log of first use of this scope sept 4 1973
ed2first.jpg
ed2first.jpg (469.26 KiB) Viewed 110 times



EGRAY_OBSERVATORY
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2488
Joined: Mon May 18, 2020 4:45 pm
Location: Essex, S.E.England
Been thanked: 1385 times

Re: over the hill prom with edmund 2 inch scope

Post by EGRAY_OBSERVATORY » Sun Feb 21, 2021 11:30 pm

Well John, a comment made recently on another post, said about "size doesn't matter" and your scope and the image shown here - really proves that. Almost difficult to believe that a 2" scope can achieve such a good image, but you have proved that too...

Thanks vm for sharing and congrats on the result.

Terry



User avatar
DeepSolar64
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 4098
Joined: Thu Sep 05, 2019 12:19 am
Location: Edneyville North Carolina U.S.A.
Has thanked: 2137 times
Been thanked: 1981 times

Re: over the hill prom with edmund 2 inch scope

Post by DeepSolar64 » Mon Feb 22, 2021 2:58 am

John,
At F25 this scope should be as free of color as many modern apochromats. I am guessing that the focuser is 1.25". Back in the early 1970s many small refractors came with .965 focusers.

I started with a 50mm focal refractor back in 1978. Both it and my 1982 model 60mm Traq refractor both have .965 focusers. I still have my early logbooks I did using the 50mm as well. It's an F11.8.

James


Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
ZWO ASI178MM monochrome camera
Lunt, Coronado, TeleVue, Orion and Meade eyepieces

Image Visual Observer
" Way more fun to see it! "

User avatar
marktownley
Librarian
Librarian
Posts: 30294
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 3528 times
Been thanked: 1459 times
Contact:

Re: over the hill prom with edmund 2 inch scope

Post by marktownley » Mon Feb 22, 2021 6:34 am

That's a cool scope John!


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

User avatar
krakatoa1883
Almost There...
Almost There...
Posts: 902
Joined: Sat Jun 11, 2016 9:41 am
Location: Mediolanum
Has thanked: 80 times
Been thanked: 279 times

Re: over the hill prom with edmund 2 inch scope

Post by krakatoa1883 » Mon Feb 22, 2021 8:54 am

Fine scope and image. I know that book (All about telescopes) full of interesting projects. At that time I was using a 60 mm refractor.


Raf
My solar images and reports with articles on solar equipment

highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1496
Joined: Sat Nov 24, 2012 2:33 pm
Been thanked: 128 times

Re: over the hill prom with edmund 2 inch scope

Post by highfnum » Mon Feb 22, 2021 1:26 pm

yes no color error detected at f25
since body was home build i chose 1.25
there is a CA chart that plots CA based on
F vs Diameter it only goes up to F20!

anything > 5 is considered good
this scope is 12.5
nothing on chart is that high



User avatar
Montana
Librarian
Librarian
Posts: 24597
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 3287 times
Been thanked: 1260 times

Re: over the hill prom with edmund 2 inch scope

Post by Montana » Mon Feb 22, 2021 3:47 pm

That's a super filaprom and the sketch from 1973 made me smile :hamster: :bow well done!
Alexandra



Post Reply