Hi everyone, I've been working on a SHG project for a few months. I was browsing the internet looking for an adjustable slit for my collimator. as the one I made for myself left a lot to be desired. Surplus shed were out of stock, If they had one it would probably cost around $55AUD shipped to Australia . looking on the Ebay Australia site I saw a Student Spectrometer for $95AUD + postage of around $32AUD . It's the same as the Surplus shed one that sells for $225USD . The seller was open to offers so I offered him $95AUD including postage, which to my surprise he accepted. My initial intention was to copy the slit and relist it, as I have a small machine shop in my shed. But now I'm wondering if it might be feasible to use some of the parts in a SHG in a motorised dobsonian style mount and use servo motors to do adjustments for various wavelengths.
Cheers
Martin
SHG build, Lucky find or not
- Martin_S
- Way More Fun to Share It!!
- Posts: 1867
- Joined: Sat Mar 16, 2019 12:34 am
- Location: Brisbane , Australia
- Has thanked: 999 times
- Been thanked: 3060 times
SHG build, Lucky find or not
- Attachments
-
- s-l500.jpg (26.32 KiB) Viewed 2638 times
-
- s-l500 (3).jpg (15.07 KiB) Viewed 2638 times
-
- s-l500 (2).jpg (26.62 KiB) Viewed 2638 times
-
- s-l500 (1).jpg (23.27 KiB) Viewed 2638 times
-
- Capture.JPG (66.73 KiB) Viewed 2638 times
H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera
- Montana
- Librarian
- Posts: 34721
- Joined: Mon Oct 17, 2011 5:25 pm
- Location: Cheshire, UK
- Has thanked: 17970 times
- Been thanked: 8905 times
Re: SHG build, Lucky find or not
That was a lucky find! I hope you decide how to use it best
Alexandra
Alexandra
- marktownley
- Librarian
- Posts: 42523
- Joined: Tue Oct 18, 2011 5:27 pm
- Location: Brierley Hills, UK
- Has thanked: 20779 times
- Been thanked: 10462 times
- Contact:
Re: SHG build, Lucky find or not
Nice job!
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!
- Merlin66
- Librarian
- Posts: 3972
- Joined: Tue Dec 13, 2011 1:23 pm
- Location: Junortoun, Australia
- Has thanked: 174 times
- Been thanked: 619 times
- Contact:
Re: SHG build, Lucky find or not
Martin,
Well done!
You should have contacted me... I have a couple of SS slit assemblies which have been used in SHG builds as well as some slit edge plates..
Let me know if I can help.
Ken
Well done!
You should have contacted me... I have a couple of SS slit assemblies which have been used in SHG builds as well as some slit edge plates..
Let me know if I can help.
Ken
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- Martin_S
- Way More Fun to Share It!!
- Posts: 1867
- Joined: Sat Mar 16, 2019 12:34 am
- Location: Brisbane , Australia
- Has thanked: 999 times
- Been thanked: 3060 times
Re: SHG build, Lucky find or not
Thanks Alexandra and Mark . Ken, your filter should arrive today . So I'm going to be busy in my shed on my solar projects.
Martin
Martin
H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera