Owned the 12x50s for over a year now. On a tripod I can do more damage with these than 10s or 15s and to be honest, I dont know how optics could get any better for spotting game in western environments. More power, you lose FOV, gain weight, and lose light transmission....These hit a balance point that is (currently) at a zenith in terms of effectiveness. In cooler (ie low heat wave conditions) I can spot elk rumps or muley legs at distances it would take 2 days to get to and the FOV is still wide enough that I can scan effectively in the early hours at distances within stalking range. They are so crisp, everytime I look through them I laugh..still... However, using them on a moose hunt last fall, it quickly became clear that for glassing sub 300yds by hand, in cover, they are usable, but when the heart is pumping, and you need to find movement or in my case find the black patch quick, and with one hand, they were less than ideal. So...as is often the case for optics addicts, I purchased some more optics.... maven 6x32s for the neck for the massive fov and one handed operation and I now keep the 12s attached to the tripod in the pack....Dont let any hombre say the ELs cant keep up with the (insert brand here) 15x56. For open conditions, (sage, desert or purely alpine) they'll go back on the neck.