Jump to content

Ceph and Cass

DSS darks, flats, bias.


Recommended Posts

As the darks already contain the bias does DSS 'know' this and account for it? For instance if I load up my file list with lights, darks, flats and bias will it know not to subtract the bias from the flats in this instance?

Link to comment
Share on other sites

DSS subtracts the BIAS from all the frames, and it should work, although in my experience I've had problems with odd colour casts. To get around this, I loaded a single light frame, the bias frames and the flats, ran that stack to get a master flat... then went back to the list of lights, loaded all the lights, the darks and the master flat, and ran the full stack on that list, leaving out the bias. That process produced much better results for me.

Link to comment
Share on other sites

Thank for that suggestion John. I shall give it a try. I have 10x10 minute subs of M51 and im trying to get the best possible results out of them. I've even group stacked them with 5 and 3 minute subs. There does seem to be more detail than im pulling out but the initial stacked image is requiring a heavy handed approach on curves, levels and contrast. The sky was quite light polluted at the time so I may have to admit defeat.

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
 Share

×
×
  • 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.