Like all the binocuolars in the Monarch ATB series, the Monarch ATB 10x56s allow you to adjust the fit of the binoculars by using the multi-setting click stop eyecups, a feature particularly useful to those with eyeglasses. Also like all the Monarch ATBs, the 10x56s are nitrogen-filled and O-ring sealed, which makes them impervious to water and fog. One of the unique things about these binoculars is that since they have the extra large 56mm lens, they have a striking low light performance. Like most of Nikon's binoculars, the Monarch ATB 10x56s are made with Eco-Glass, which means that they are lead and arsenic free.
