Warm/dead pixels are imperfections in the CMOS/CCD device of your camera. They are usually a different color from the surrounding pixels in a photo, mostly visible in dark parts of the photo.

A good way to test your camera for warm/dead pixels is to take a photo with the lens cap on. Or, if you own a camera that doesn't have a lens cap or the lens cap will interfere with the lens then go into a closet or bathroom with the lights off (complete darkness) and take a photo. The longest exposure you can get your camera to go (manual mode might provide longer shutter speeds) will show you more warm/dead pixels.

Then you can use this application to analyze the image for a detailed report.

Another info source, from climbers , is here: »webpages.charter.net/bbiggers/DC···ls.html#

got feedback? got feedback?

Any feedback you provide is sent to the owner of this FAQ for possible incorporation and shown publically as well.

by Nick edited by tmpchaos
last modified: 2003-12-28 20:37:13