Re: How many such exposures are going to be messed up like that?
They don't use photographic plates, they use cmos (and other related) electronic sensors. But that doesn't change the physics of how focusing optics function. Over exposure will bleed out into neighbouring pixels. Preventing that takes more than clever post processing. There's a reason DSLR camera's still have physical shutters. Too much light for the exposure still ruins the exposure. Especially on exposures measured in minutes.
Biting the hand that feeds IT
