ZeroTech Optics The Thrive 10x42mm Roof Prism Binoculars Rubber Armor Grey TH1042. 1 mm Exit Pupil: 4.3 mm Optical Coating: FMC Binoculars Focus System: Center Focus Diopter Adjustment Range: -3 - 3 dpt Weight: 670 g Finish: Rubber Armor Package...