Understanding the Gain and Offset (From Mr.Craig's Blog)

http://www.stark-labs.com/help/blog/files/GainAndOffset.php

High Gain for weak objects?

http://qhyccd.com/ccdbbs/index.php?topic=3700.0

Bias, Dark, Flat frame and Overscan area

http://www.astro.uni-bonn.de/~mischa/datareduction/biasdarkflat.html

CCD Fundamentals

CCD Fundamentals    (By TrueSense Imaging)

Clean the CCD sensorface

Certer-tilt adjust ring user manual
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