The grey edition of Zeiss Optics' 10x32 Terra ED Binocular features a redesigned ergonomic chassis that makes holding them more comfortable, especially during long glassing sessions. Optically, they retain the exceptional elements that are the hallmarks of the Terra ED including compact Schmidt-Pechan roof prisms, SCHOTT extra low-dispersion (ED) glass, and the proprietary multi-coatings. These complementary technologies and elements work together to produce an immersive observational experience that presents clear and bright views, despite the relatively small objectives, with accurate color representation and virtually zero distortion across the entire wide field of view. The 61° apparent angle of view also helps to minimize the visible hand-shake common in smaller and lighter high-power binoculars. The comfortable ergonomic chassis is made of a fiberglass reinforced polycarbonate to help reduce weight, without sacrificing strength while adding impact and temperature resistance. Being resistant to temperature changes not only ensures that the housing will remain a constant temperature, even in cold and wet conditions, but will not experience the expansion and contraction common in metal chassis that can cause the optical elements to move out of alignment over time and preventing the binocular's ability to achieve sharp focus. The chassis is covered in a black rubber armoring that helps to protect it from drops and impacts, and provides a slip-resistant grip. Optical Performance 10x magnification 32mm objective lenses Roof prism optical path The compact Schmidt-Pechan prism design corrects the view while allowing for thinner optical tubes versus the more common Abbe-Koenig design SCHOTT ED glass elements reduces chromatic and spherical aberrations to produce views with true color rendition without halos, diffraction, or distortion across the entire field of view Zeiss proprietary hydrophobic multi-coated optics sheds dust, dirt, and oils while improving light transmission, color rendition, sharpness, and contrast Short 5.25 foot close focus distance Wide 61° apparent angle of view 367-foot field of view at 1000 yards Long 16.5mm eye relief 3.2mm exit pupil Use and Handling Closed-bridge configuration Large fast-focus center wheel ±3 right-eye dioptric correction 56-74mm interpupillary adjustment range Twist-up click-stop rubber eyecups for comfortable use with or without eyewear Construction Details Impact, corrosion and temperature-resistant fiberglass-reinforce polycarbonate housing Temperature resistance prevents expansion and contraction in extreme temperature changes which prevents optical components from moving out of alignment Protective black rubber armor Nitrogen-filled for water and fogproof performance Submersible to 100 mbar of pressure, or approximately 3' (1m) Operating Temperature 5 to 140°F (-15 to 60°C) Weight: 18 oz Specifications Prism Type Roof Magnification 10x Objective Lens Diameter 32mm Angle of View 6.1° (actual) 61.0° (apparent) Field-of-View 367.0' @ 1000 yd / 121.8 m @ 1000 m Minimum Focus Distance 5.25' / 1.60 m Exit Pupil Diameter 3.2 mm Eye Relief 16.5 mm Interpupillary Adjustment 56.0 - 74.0 mm / 2.2 - 2.9" Dioptric Correction ±3 Focus Type Center Tripod Mount None Dimensions 4.9 x 4.6" / 12.45 x 11.68 cm Weight 18.0 oz / 510 g |
