[Craig_L]

Hi,
Just wondering whether it is better in terms of noise to shoot say 10 shots @ ISO 800 and 4 minutes exposure, or 20 @ ISO 1600 at 2 minutes? Will stacking double the shots, reduce the noise more than using half the number of shots at the lower ISO setting. Or the same between 400 and 800 ISO. Wonder if anyone has any thoughts on this.
Thanks,
Craig