The olympus 10x50 dps i binoculars have one of the widest fields of view in their class making them ideal for tracking fast moving subjects such as birds in flight or deer on the move the built in dioptric correction adjusts to individual eyesight and the large centre focus knob is close the hand for fast and easy focusing these traditionally designed binoculars are finished in a sure grip rubber coating and feature high quality aspherical lenses with anti reflective coating for a bright clear