Jump to content


RGB Over Several Nights - Best Method?

Recommended Posts

I was hoping to experiment with this, but as usable clear nights this winter have been in single figures, I've opted to ask the experts. To keep it simple, let's say we have 3 (identical) clear nights with 3 hours of imaging available each night and I want to capture a single target.

1. Is it best to do one night of R, one night of G and one of B, or

2. One hour if R, one of G and one B each night?

If we go for option 2, should I:

a. Stack all the Rs Gs and Bs individually and then combine, or

b. Stack each night's RGBs and then combine the 3 composites?



Sent using Tapatalk

Link to comment
Share on other sites

I tend to do full sets every session.

With our weather, I want to make sure I get somehting at the end rather than nothing.

I started M42 earlier this year with the intention of getting 'loads' of data, only to find it is now too low. As I did LRGB each night, at least I got something.

Link to comment
Share on other sites

For option 2, I would stack only when you had the full set for the filter. This would allow you to use a sigma clip routine effectively and this is a powerful noise reducer.

Personally I shoot sets on each night. I would have thought that averaging out the vagaries of a particular night (since even where I live no nights are perfect) would beat having all the problems in one channel.


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.