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