I’ve had multiple setups over the last 2 years, but for the images displayed in the movie there were two main setups: a William Optics RedCat 51 II and an Askar 130PHQ, both paired with a ZWO ASI2600MM Pro camera, typically on a Sky Watcher NEQ6 Pro mount, along with narrowband and RGB filters depending on the target.
What sort of magnification do you need to get photos like that?
The Redcat scope FL is 250 mm. The Askar scope FL is 1000 mm. The camera has an APS-C sensor (23.5 mm x 15.7 mm) giving it a crop factor of about 1.5x compared to 35 mm film (where 50mm is considered 1:1 human vision field of view).
So:
Redcat: 250 / 50 * 1.5 =7.5x magnification
Askar : 1000 / 50 * 1.5 =30x magnification
This is deep sky photography. Doesn't require lots of magnification. What it does require is dark skies and lots of exposure time.
I wish he had more info on his site about his capture process, but it sounds like some of his captures are over multiple nights? I'm not entirely clear on the terminology here:
Integration: 17h 50′
Hα: 30×600″ (5h)
OIII: 31×600″ (5h 10′)
SII: 37×600″ (6h 10′)
RGB Stars: 30×60″ each channel (1h 30′ total)
https://www.instagram.com/p/DToHq5sk_6r/?img_index=1
I may be wrong with all of this. I haven't done any astrophotography since I was a teen and that was just a 50 mm Nikon SLR on the back of a Celestron 8" CST with motorized manual tracking from highly suboptimal skies (Miami, FL). Still, got some decent shots of the Orion nebula.
Thanks for the info.
> 50 mm Nikon SLR
35 mm obviously.