Design, construction, tuning of spectroscopes
Robin Leadbeater
Posts: 1952 Joined: Mon Sep 26, 2011 4:41 pm
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by Robin Leadbeater Wed Apr 28, 2021 10:18 pm
Sebastien Berriot wrote: Robin,
Sorry no. I only used this configuration with a DSLR once once to see if it would work. Spectroscopy is much easier with a mono astro camera
Cheers
Robin
Sebastien Berriot
Posts: 52 Joined: Fri Aug 19, 2016 7:02 pm
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by Sebastien Berriot Fri Apr 30, 2021 3:39 pm
Hello Robin,
Robin Leadbeater
Posts: 1952 Joined: Mon Sep 26, 2011 4:41 pm
Contact:
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by Robin Leadbeater Fri Apr 30, 2021 4:43 pm
Sebastien Berriot wrote:
I used many adapters from my junk box screwed together together to convert an Olympus lens to T2.
junk_box_spectrograph_adpaters.png (498.43 KiB) Viewed 4763 times
You can do it much easier though using this adapter
https://www.teleskop-express.de/shop/pr ... ength.html
plus an adapter of the right length to reduce to 42mm from the list there
Cheers
Robin
Robin Leadbeater
Posts: 1952 Joined: Mon Sep 26, 2011 4:41 pm
Contact:
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by Robin Leadbeater Thu May 06, 2021 10:55 pm
Sebastien Berriot wrote: Hello robin,
I do not know but you can calculate it (camera lens to M48 + M48 to T2 + atk 314 back focus = back focus of the camera lens) or you can ask Teleskop Service