View Single Post
Old 24-07-2014, 01:31 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,823
Originally Posted by Amaranthus View Post
Agree Ray, with caveats. If you use a light box and take really short-duration flats (I have a dimmer switch on mine and so can take nice 50% max ADU flats at a consistent 0.1 sec exposure), then bias subtract from those flats, it seems then well positioned to make a "super", no?
If very short subs are possible, that sounds like a good approach Barry - gets away from dark correction in making the flats, so lots of noise goes out the window too. Have you tried it? maybe also consider a median filter to remove any residual hot pixel data? Of course, would only work properly if you dither.
Reply With Quote