[h0ughy (David)]

Originally Posted by Hagar

Hi Robin,
The offset and gain settings for flats really wont matter too much. You are really only imaging imperfections in the imaging train and will use this file to remove them off the final image. Most software packages do a fair amount of work to the image to make a final master flat. The important things to remember are that the focus, camera alignment have not been changed between taking the lights and the flats. You may also find that a set of bias frames taken at the same settings as your lights will correctly calibrate the master flat for you and make application of the flats very effective.

Welcome onboard with a QHY8 David. (Houghy) You will love it.

thanks Doug