A couple things to add on the low light. I don't know
the technical terms when it comes to glasses, but one
thing I've always remembered is when it comes to
low light, it is best to use one where the 2nd number
is at least 5 times what the 1st number is; ex. 7 x 42,
8 x 40, 10 x 50....these models let in the most light.
A lot of hunters shy away from these because they
tend to be on the heavy side, that's one of the reasons
so many buy compacts, though weight, is the only
advantage they offer.

The other thing to consider, there is no possible way
you can tell which binocular is best in low light by trying
them in a store. Even cheap glasses look "bright" when
used in well lit areas. Decide what you plan to use them
for, then decide what power you need to get. If the
'higher the power = the better the binocular' we would
all be using 15x binoculars mounted on tripods[&:].

Well, after all that, hope some of this helps with your
decision in picking out the right pair of glasses[8D].

Best of Luck
TB