Twas a time, possibly before some of you reading this were born, when astroimaging was an ordeal. Imagine a world with manual guiding. You’d spend hours staring at a star centered in an illuminated ...
Guessing by the noise improvements... I'm going to say that they [the industry] just can't get noise levels down enough on CCD sensors hence the move to CMOS. Nikon made some serious leaps and bounds ...