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This is why I take 500+ images and process them. I don't think the moving satellites would cause any harm to long exposure deep space photography. I agree if yo
by system2 6y ago
This is why I take 500+ images and process them. I don't think the moving satellites would cause any harm to long exposure deep space photography. I agree if you take 30 pictures, it could be a problem.
- terramex 6y ago> This is why I take 500+ images and process them. If you do 500 exposures you get 500x read noise of the sensor mixed with signal. Modern CCD and CMOS sensor have low read noise (compared to thermal and shot noise) but not zero. For scientific observations of faint objects long exposure times on order of hours are necessary, for amateur astrophotography you can just go with multiple exposures.
- mkj 6y agoThanks for the explanation, I didn't realise there was a per-exposure noise component.