Bushnell 244210 10 x 42 Excursion EX Binocular Wide-angle binoculars with 10x magnification and 42-millimeter objective lenses 341-foot field-of-view at 1000 yards; long eye relief Fully multi-coated optics with BaK-4 roof prisms and PC-3 phase coating Rugged lightweight housing; lockable center focus knob 100 percent waterproof/fogproof construction; limited lifetime warranty