i have the 12x42 as i researched that they were better in low light than the 16,s,,,and they are pretty decent at those low light dawn and dusk times,,there are just 5 to 10 minutes each way that they are marginally not quite as good as the razors,,but then the image stabilizing after that makes up the difference//no tripod needed,,{even in the wyoming wind}!!and you know that can be pretty bad at times.can glass up deer at 650 yrds free hand with ease vs having to use a tri pod with the regular binos,im very impressed by them,,thought nothing could beat my razors before i tried the image satbilizing bino,s.my razors are good,but the i s tech is impressive.