Is there a way to substract a master flatdark from single flats images? Or is the masterflat image been build with a reject from a master flatdark and so Prism does take care of this?
When for instance having 5 second flats, a master flatdark is sufficient to use.
Calibration tools, stacking, aligning,..
2 posts • Page 1 of 1
for a single image, you can actually do it using the processing > calibration > current image calibration. You can also use the pre-processing tool to subtract the flats darks from the flats successfully. This is just not implemented in the automatic processing tool
Hamza Touhami | Site Administrator