I had some 10-50 Leica iirc.....even rested, they were too much magnification. I have the Brunton Eterna, 7x42. You want at least a 5 value when dividing power into obj size. These are super, super clear. Bought these after following a long discussion on a board 6-7 yrs back. It has nice, wide strap and a one pc eye cover to boot. Did I say they are very clear? Not sure what they go for now but snagged these for under a buck fitty.