Quote:
Originally Posted by RB
Did you check the weather Roger?
 |
Is that a sarcastic comment or am I missing the meaning?
Quote:
Originally Posted by glend
Heat. Camera sensors need to be cooled. The longer the exposure the more heat is generated. You may be able to subtract it with dark calibration.
|
This is the dark. Normally I see point like noise on darks and cosmic rays, not vertical lines that get shorter towards the top of the image. Are you suggesting this a normal dark frame for some cameras?