Stacking 204 RAW frames for deep-sky astrophotography

[Andy Resnick]

Virgo has moved on, Hercules is now in position- from last night:

This is a downsized crop. Technical deets: 800/5.6, 10s ISO 2000, 204 frames.

 

[Chronos]

Very nice for ISO 2000. Shots at that speed are usually rather grainy.What mount you using?

 

[Andy Resnick]

Thanks! My lens mount is a Losmandy GM-8. I've found that stacking RAW images (as opposed to JPGs) let's me use higher ISO settings.

 

[davenn]

I've found that stacking RAW images (as opposed to JPGs) let's me use higher ISO settings.

yes it does and you end up with a much better quality image D