[alistairsam]

Originally Posted by Poita

Gain and offset should be around 14 and 17 for gain and offset 120.

There is a write-up here
http://www.stark-labs.com/blog/files/GainAndOffset.php

Hi Peter,

How bright should it be for this step "Aim the camera at something bright or just put it on your desk with no lens or lenscap on and take a picture. Look at the max value in the image". that's to adjust the gain.
I tried this indoors with the camera pointing at the ceiling FL. is this OK?

when you take a bias frame to get the value below 1000, would the gain setting impact at all? from the writeup in the link, you set the offset first, then set gain. so does it matter what gain you set when adjusting offset?