[CapturingTheNight (Greg)]

Hello,

When I started out imaging I created a folder on my computer for dark frames and divided it up into seperate sub folders for different ISO speeds and exposure lengths. Now I am getting quite a collection in some of the folders. My question is- is there a downside to collecting and using dark frames from different imaging sessions (as long as they are the same ISO and exposure length) or should I only use the dark frames from that particular imaging session? As I understand it, hot pixels are generally always the same ones but if they are not and I have a multitude of them over the entire library could it start 'eating' my images?

Cheers

Greg