i have a 3.5x10 x50mm ZeissConquest and its got a better view,clearer and crisper image,and better E/R than the nikon monarch does,in an earlier post someone mentioned there is no difference in twilight between a 40mm VS. a 50mm,i am gonna argue that one.we have had the same identical scopes a 40mm and a 50mm sitting inside of a swamp,and could see 15 minutes longer with the 50mm than we could a 40mm,there is a world of difference.the 50mm is letting in way more light than a 40mm,do the test yourself you will see,
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