Leica Ultravid HD-Plus 8x50mm Roof Prism Binoculars Rubber Armored Black. Their fluoride lenses ensure optimum image clarity and resolution power. Thanks to their large front lens diameter they are particularly suitable for observations at night and in the hours approaching darkness. Leica Ultravid 50 HD-Plus binoculars are available with a magnification factor of 8x 10x or 12x. With their ideal combination of high transmission and perfect contrast the 8x50 DH-Plus models are truly excellent binoculars for use at night and in low-light. Specifications for Leica Ultravid HD-Plus 8x50mm Roof Prism Binoculars: Manufacturer: Leica Color: Black Magnification: 8 x Objective Lens Diameter: 50 mm Prism System: Roof Image Stabilizer: No Eye Relief: 17 mm Exit Pupil: 6.25 mm Field of View Linear: 352 ft at 1000 yds Field of View Angle: 6.7 degrees Optical Coating: HDC Coating / Leica AquaDura Binoculars Focus System: Center Focus Twilight Factor: 20 Interpupillary Distance: 58 - 74 mm Close Focus: 11.5 ft Diopter Adjustment Range: -4 - 4 dpt Weather Resistance: Yes SplashProof Water Resistant Mark: 16.5 ft Water Resistance Level: Watertight Length: 7.2 in Weight: 2.21 lb Finish: Rubber Armored Fabric/Material: Magnesium Condition: New Package Type: Box Magnification Type: Fixed Width: 4.9 in Case: Yes Strap: Yes Housing/Frame Material: Magnesium Nitrogen Filled: Yes Zoom: Yes Height: 2.7 in Package Contents: Leica Ultravid HD-Plus 8x50mm Roof Prism Binoculars Leica 40095: Ultravid HD-Plus 8x50mm Roof Prism Binoculars Black