|
Pete,
Its the total integration time that counts, the exposure time of each sub doesn't really matter as long as each sub isn't dominated by sky glow. That used to be the criteria for setting sub times, keep increasing exposure until sky glow starts to brighten.
More stacked subs also means better signal to noise ratio, so a 30x300sec stack will look cleaner (less noise) than a 15x600sec stack.
Be aware shooting OSC behind a LP Filter may create issues with white balance later, as the yellow content of the colour spectrum is stripped out.
Cheers
Bill
Last edited by billdan; 13-08-2016 at 01:32 PM.
|