This was a 135mm lens at f2.0 for 6 seconds iso 2000
So f 2.0 basically lets in twice the light of f 2.8.
Longer exposures are good but can introduce star trails
iso 2000 used to be an instant recipe for noise but sensors are getting better. Noise reduction is getting better too.
Last edited by allwheelsdriven; 07-17-2020 at 04:32 PM..
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