Conceived - designed - and constructed for outstanding performance at long range and in low light when many animals are most active - the Vortex Optics 18x56 Kaibab HD Binoculars combine multiple technologies and features to ensure clear and crisp views from the predawn to late dusk hours and to maintain bright views despite their high powerTheir performance starts with the over-sized 56mm objectives that draw in the copious amounts of light required for seeing in low light The powerful 18x magnification enables users to reach out to great distances and make detailed observations&mdashespecially useful when big-game hunting across the open prairies out West where game remains at long range Optically - they benefit from high-density (HD) extra-low dispersion (ED) glass set in an apochromatic configuration that virtually eliminates edge distortion and color fringing Next - anti-reflection fully multi-coated optics further maximize light transmission through the light path and improve contrast and color rendition across the entire visual spectrum - ensuring colors remain true The compact roof prisms are finished with highly reflective dielectric and phase-correcting coatings that limit internal interference - light loss - and diffraction These features work together to produce bright and clear high-contrast views with accurate color fidelity and improved clarity and resolution To further improve the observational experience - the Kaibab is designed with a wide 67 degrees apparent angle of view to minimize distracting hand shake and present a spacious field of viewComplementing the optical performance are construction details that allow these binoculars to withstand the rigors of the outdoors The chassis is made of a lightweight and impact-resistant polymer material wrapped in a slip-resistant rubber armor that offers improved grip security - especially in cold and wet weather The binoculars' optical tubes are O-ring sealed and argon filled
Features: Wide 67° Apparent Angle of View, Apochromatic Lens Configuration, XR Plus Fully Multi-Coated Optics, Dielectric and Phase-Corrected Prisms, High-Density Extra-Low Dispersion Glass, Twist-Up Eyecups/Locking Diopter, Impact-Resistant Polymer Chassis, Argon-Filled Fogproof, Waterproof, Tripod Mountable with Included Adapter, Large Center-Focusing Knob
Prism Type: Roof
Magnification: 18x
Objective Lens Diameter: 56 mm
Angle of View: 3.7 degrees (Actual)
Field of View: 194' @ 1000 yd / 64.4 m @ 1000 m
Minimum Focus Distance: 19.8' / 6.04 m
Exit Pupil Diameter: 3.1 mm
Eye Relief: 16.4 mm
Interpupillary Adjustment: 60 to 76 mm / 2.4 to 3-inch
Diopter Adjustment: Yes
Focus Type: Center
Fogproof: Yes - Argon Filled
Environmental Resistance: Water-Resistant (Unrated)
Dimensions: 7.7 x 5.7-inch / 19.6 x 14.5 cm
Weight: 43.5 oz / 1233.2 g