Extremely cool. Thanks Daniel. I just performed your "secret" dead-pixel remapping feature. Most red dead/hot pixels were gone after one time. For the larger blue dead/hot pixels, it took 6 times. But they are gone.
Thanks for the tip.
You're welcome. Glad it worked for you.
I tried that 'sensor cleaning' pixel remapping numerous times on my 7D when I first got the dead pixels, before I sent it to be repaired. Maybe it worked for one or two of them I didn't notice, but the rest were stuck there, and didn't move (even after sometimes 15 minutes of 'cleaning').
Another feature the K-5 has over the 7D, there's a menu-option for 'pixel mapping' in there. (come to think of it, there's a 'pixel mapping' option in my 5 year old Olympus 8MP P&S compact thing). Again, canon, why not you too?
I always wondered how I got so many dead pixels, and seeing as it's out of warranty, I can wonder aloud if it had anything to do with that solar eclipse in January last year...
An awful lot of electrons were terribly inconvenienced in the making of this post.
But I do have a question: I realize that long exposures heat up the sensor and can cause damage. So I limit the real long exposures (10-50 minutes) to cold nights (usually below freezing or very close to it) to try and mitigate some of the damage to pixels and that is usually when the night sky is clear anyway. So is the cold atmospheric conditions enough to prevent the sensor from heating up and damaging the sensor?
Tried it - nope still a white dot in all frames - full size still is is often lost in the clutter for reproducing a "snap shot"... ummm not what I bought a DSLR for.... and Video... oooffff.... big white dot just lower/left of center ummm usually within the subject matter neighborhood.
If you see me with a wrench, call 911