newfie ghost
Well-known member
To me which binocular I use for astronomy depends on what I'm looking at that particular night and of course where I'm viewing from. When I'm viewing here in town I usually opt for 10x42, 10x50, 12x50, etc. As you mentioned the darker sky resulting from the smaller exit pupil darkens the sky and makes the stars "pop".
If I'm going out to my dark site in a rural area I always take a pair of 7x50's for viewing nebula and a pair of EWA porros for putting as much as the Milky Way as possible in the fov.
Binocular astronomy is a severe test of optics and I've never seen a binocular as good as the Prostar at night, although the 10x50 FMTR-SX comes very close.
Steve
Prostar, ah Nikon I bet you couldn't go wrong there. Waterproof too.