Calibration frames

[CaptainShiznit]

Hey.

Just a quick one. I'm considering setting up tonight and shooting the same target as I did a couple nights ago while I'm asleep. I'm up early for work in the morning so plan to tear down before I leave. Would you advise to capture a new set of darks, flats and biases or do you think I can make do with what I got from a few nights ago with the temperature being about the same?

Shooting with a DSLR.

Cheers!

[david_taurus83]

Do your flats first before you start taking lights. You can reuse the bias files from previous nights. Darks should only be used if they are the same temperature.

[alacant]

1 hour ago, CaptainShiznit said:

darks

Hi

Use dark optimisation when calibrating or, better, lose the dark frames altogether and dither between light frames. Then stack with the sigma clip algorithm.

HTH

Edited March 22, 2020 by alacant