I mentioned this several months ago, but didn't get any response. I
thought I'd bring it up again.
I've got a problem with a cluster of hot pixels on my K20D. It manifests
as a large white (or black ???) spot in the image.
http://www.flickr.com/photos/jb_sessoms/8462668719
Taking a look at the cluster in high magnification, it appears there are
150+ pixels affected.
It's there in EVERY image, although it seems to get worse with long
exposures. I haven't experimented to see if high ISO makes it worse as
well. With long exposures, the hot pixel cluster is accompanied by a hot
strip that extends completely across the image frame.
The cluster is reasonably easily handled in Photoshop, but the hot strip
is a genuine pain in the ass to clean out without leaving obvious traces.
Any thoughts on whether pixel mapping is going to make the problem
worse? I've thought about sending it off the Pentax service, but I don't
know if that would do any good or whether it would be worth the cost.
Do you suppose it's worth anything as parts?
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