Quality center focus binoculars provide some type of diopter adjustment to compensate for the small difference between the viewers right and left eyes. Minimum Focus Distance is also a consideration in binocular selection. A close focusing binocular allows you to view objects closer in in sharp detail. Armoring Armored binoculars are covered with a rubber or polyurethane material that makes them more resistant to impact damage and scratches. The armoring helps eliminate disturbing noise caused by contact with metal objects.
Most armored models are easier to grip and provide better resistance to the elements.
Water resistant models are not damaged by humidity or light rain. Water proof binoculars can actually be submerged without damage. Compact Binoculars Compact models are smaller and lighter than conventional binoculars. A lightweight roof prism design allows some 8x and 10x models to be easily carried in a pocket. This is a considerable advantage for hikers, sports enthusiasts, or anyone desiring good performance in a small package.