Opticron Aurora BGA VHD 10x42 Roof Prism Binocular Black Full Size. Designed on a new platform with an entirely new optical system the Aurora is we believe one of the very best lightweight pro field binoculars available today. With performance comfort ergonomics and attention to detail equal or better than its sister model the Aurora BGA VHD 10x42 delivers a wider 6.6 degrees FOV closer focus to 1.9m/6.2ft and a sweet spot so large it will surprise and delight even the most critical eyes. Specifications for Opticron Aurora BGA VHD 10x42mm Roof Prism Binocular: Manufacturer: Opticron Color: Black Magnification: 10 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: OP6 Image Stabilizer: No Eye Relief: 18 mm Exit Pupil: 4 mm Field of View Linear: 116 m at 1000 m Field of View Angle: 6.6 degrees Optical Coating: S-H Type Binoculars Focus System: Center Focus Twilight Factor: 20.5 Interpupillary Distance: 2.2 - 3 in Close Focus: 1.9 m Diopter Adjustment Range: 6 dpt Water Resistance Level: Waterproof Length: 152 mm Weight: 25.2 oz Fabric/Material: Polycarbonate Aluminum Alloy Package Type: Box Magnification Type: Fixed Width: 132 mm Depth/Thickness: 51.5 mm Features of Opticron Aurora BGA VHD 10x42mm Binocular Compact lightweight roof prism design Compact single hinge single axis body Textured rubber armoring Nitrogen gas filled waterproof (5m/16ft depth) VHD optical system incorporating field flattening technology and high quality ED glass objective system Phase corrected prisms with Oasis prism coating S-H type multi-coating to all air/glass surfaces Flat field vision Long eye relief for spectacle wearers 4-stage twist type retractable eyecups 500 degees turn smooth action wide wheel focusing Central diopter adjuster Tripod adapter socket Package Contents: Opticron Aurora BGA VHD 10x42mm Binocular Case Neckstrap Cleaning cloth Lens covers Rainguard Opticron 30776: Aurora BGA VHD 10x42 Roof Prism Binocular Black Full Size