Re: [APML] How long/what temperature with 20Da

[Chuck Vaughn <aa6g@aa6g.org>]

Dick,

It was 78 F for the one with 12 minute exposures and the nebula data  
and noise was still squished down in the very bottom of the  
histogram. I guess the 20D is indeed a low noise camera. Noise wise I  
don't think 20 minutes would be a problem.

Chuck


> I'm amazed by how long some of you are going with the 20Da.  E.g.,  
> if I understand Chucks notes, he's going 12 minutes at ISO 800?  To  
> me that seems like an incredibly long period of time.  What's the  
> ambient temperature in these situations?  Have folks had a chance  
> to figure out the optimum point of termperature/exposure length?
>
> -Dick L.
> p.s.  I can go about 2 minutes at ISO 800 with my Nikon D100, in  
> Texas, in the summer ;-)

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo