They need to make hermetically sealed cameras with argon or nitrogen gas in behind the glass to keep the CCD's dry. I know with the top of the line cameras (with some makes) they do this (seal the CCD chambers and pump gas in there), but it should be done with all cameras. Desiccant, hell with the humidity I get up my way, I'd need a semitrailer load of desiccant to keep a camera dry!!!
