On Saturday, Nov 22, 2003, at 18:37 America/New_York, Herb Chong wrote:
i tried a 30 second exposure of the inside of a lens cap and i can see only
one obvious hot pixel. i haven't looked all that hard yet though, and i do
have the noise reduction turned on.
If you're looking for hot pixels, you may have to turn off noise reduction and minimize all in-camera processing. And you'd have to shoot at a number of different shutter speeds and look for pixels that are consistently hot across all the different exposures.
I had a hot pixel in an old Olympus digital P&S. No matter what shutter speed I used, it would show up as a bright green dot visible even on the camera LCD when zoomed in. It was easy to retouch in PS but became too much of a nuisance so I sold the camera.
--jc
