I've tried a number of binoculars (Zeiss, Swarovski, Leica, Steiner, Kowa, Kamakura, Nikon, Meopta) in the last week and think Kowa Prominar 8.5x44 XD has the best optics of all. This is because the color is neutral and that it handle chromatic aberration in a very good way. Unfortunately it weighs a lot ..

However, I prioritize good optics in front of a lighter design. But the question is..do you have any tips for avoiding neck pain after a day of bird watching with a heavy pair of binoculars?