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Old 09-04-2021, 06:33 PM
jahnpahwa (JP)
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jahnpahwa is offline
 
Join Date: Apr 2020
Location: Canberra, AUS
Posts: 593
Deep sky on film

Hi team,


I've not been at the scope much recently, but have been enjoying playing with some film cameras a lot. I plugged an old (1980-ish) SLR into my 8" newt the other night and set it going for a half hour on orion and on carina. I don't have a film plane indicator on the body of the camera, and just winged it.... and the coma is bloody horrendous! Honestly, I think it would be better without a corrector, yes? But as a proof of concept, I think the images are encouraging.

Focussing is a bit of an issue, and my mount isnt really up for 30min subs in its current state, but this was fun.
I've not seen heaps of film astro (other than nightscapes, of which I have seen many many many), so I was happy to see some colour and shape.

I don't think I'll have another chance at Orion, but I will try to improve Carina over the coming months, firstly by figuring correct spacing for the coma corrector, then working a better way to focus, and also tuning the mount for better long exposures.

Anyway, a throw back for some people, I guess! Any comments and suggestions are very welcome. Gear was the skywatcher 200pds, olympus om2n with t-ring and kodak ultramax 400 film. I have some 800 Portra in the same camera right now and will sacrafice a few frames to astro if we get some ok nights in the coming week.
Attached Thumbnails
Click for full-size image (orion tinier.jpg)
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Click for full-size image (carina crop and levels smallerer.jpg)
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