Ok I just spent a hour behind my HD+ 10x42 and Noctivid 10x42s and can honestly say with out sitting behind them on a tripod with the white cards and black letters I can’t tell the difference. There is a slight difference but I think it is more on the field of view than clarity. Ultravids feel smaller in the hand but the Noctivids feel better and the focus wheel might be more comfortable.Pm me and I will send you my number if you have any other questions.