Heat and Hot Pixels
On my little P&S(Ricoh GX100) I take lightning pics by setting the shutter speed to 2 seconds and locking the shutter button down on continuous.
The resulting set of images starts with a few hot pixels(alot more than when it was new) but after a few hundred pics, the frames are loaded with them. I'd like to upgrade to a m43 or aps-c cam but am I going to have the same problem? is this just too much for what the cameras are desighned for?