I can feel 5D MK iii is on the edge of releasing. I think it's supposed to announce and release in 2012? And Mark ii has been around for exactly 3 years and 11 days.
I wonder how long will my 5D last ? I don't see a need of upgrading to MK2/3 cause I find 5D has everything I desired for a camera. (Actually except the AF part, I wish I could have more than 9 points AF, I want something like Nikon's 51 points cross-type AF system.)
I bought my 5D used from a photographer who used it as a backup camera. Camera doesn't have a date code on it. I am not sure when was the camera manufactured and first bought from store.
Does full-frame sensor have a lifespan? I know shutter has mechanical wear-offs, does sensor have it too? Does other component of the camera have a lifespan too?