Its 42mm objective lens consists of an extra-low dispersion glass element which is made of the arsenic- and lead-free Eco-Glass to minimize chromatic and spherical aberrations. The full optical path has anti-reflection coatings to boost light transmission and contrast. Additionally the phase-corrected prisms prevent internal interference in the light path. The dielectric prism coatings limit light loss to provide consistent brightness and clarity. These binoculars from Nikon feature the field-flattener lens system that corrects lens-edge distortion. There are scratch-resistant coatings on the front glass to resist dust dirt and moisture. With these binoculars you get a 62 angle of view and a 362-foot field of view at 1000 yards. The interpupillary distance of 56C74mm and right-eye dioptric value can be adjusted to one’s preference. Thanks to the twist-up rubber eyecups you can observe scenes while wearing glasses. The 17mm eye relief ensures a comfortable viewing experience. These Nikon binoculars have a magnesium alloy chassis with the optical tubes filled with nitrogen and sealed with O-rings to prevent fogging and maintain waterproofness down to 16.4 feet.

Nikon Monarch HG 10×42 Binoculars
$83.31