On Mon, 10 Nov 2003 [EMAIL PROTECTED] wrote: > > Yes, they are pixels which always report that they have seen more > light than they have really seen. > > > If you look at the picture that I posted from my defective *ist D > you'll see plenty of examples. > > > alex > > Aha, I get it. > > When I see those in my jpegs, I figure they are caused by dust on > the scanner/slides when I scan my slides. > > Which makes me wonder if dust causes hot pixels. Dust that got into > those closed rooms (sorry, forget the name for that right now) they > have when they made them.
Dust usually makes shapes that span multiple pixels and look blobulus. Hot pixels can be seen as a single bright point and don't have any shape beyond that. Most scanners are not assembled in clean rooms and don't have a sealed interior. Dust can get into them. alex
