For myself I have found like many other have said, I have to look through each pair myself. Many supposed "Alpha" bino's often don't appear to be as good as some cheaper brands. Given available money that is something I consider. The age old question, how good is good enough, given the money to be spent. I don't often use bino's when I hunt, normally in tight dense woods where 50 yards is about as long a shot that is presented. I have a pair of Minox 6.5X32IF that have served me well. Many don't like the Independent focus, but for me it is set and forget from about 20 yards to infinity. I'm sure there are better ones, but these seem good enough. If my hunting changes I would consider a better pair. I have also found that most anything over 10 power is not very practical without a tripod.