I'm looking for a good technical description of what is occurring in a CMOS camera/imaging sensor when it is significantly over-saturated. For the uninitiated, this is known as the black sun effect, named for taking a picture of the sun causing a black pixels where the brightest part of the sun should be. I don't know if this is the "official" name of this phenomenon, I've been searching but I can't find any reputable papers or technical descriptions of what's actually going on on the chip. --=20 Martin K. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .