Night photography and focusing

Also, stopping down still improves sharpness.  If you are shooting from a tripod stop the lens down. Too many leave their lenses wide open when shooting in darkness.  I do most of my night macro and field biology shooting between f8 and f11, sometimes as high as f16. And at lower ISO.

Of course a good flash helps too If the shots are closer a good headlamp or mini mag light helps. Even out to quite a distance.

And I'm focusing in the middle of the night with a pentaprism OVF.