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Old 22-11-2020, 06:40 PM
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alpal
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Join Date: Jan 2012
Location: Melbourne
Posts: 3,612
Quote:
Originally Posted by multiweb View Post
ha yes... I remember now. It's been a while.

Yes I do get column defects as it ages. I have one obvious and one in the making. They seem to start from hot pixels. I guess cosmic rays get the better of the sensor after a while. It's not a show stopper though. You can use a bad pixel map and dither. I remember an old STL11k peppered in bad columns and dark subtraction took care of all that.



I've got a bad column but it only shows when there is no cooling used.
Dither should get rid of all defects.
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