The black and coyote brown ZEISS Optics 10x42 Terra ED Binoculars feature 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 proprietary multicoatings. These complementary technologies and elements work together to produce an immersive observational experience that presents clear and bright views, with accurate color representation and virtually zero distortion across the entire wide field of view. The 60° apparent angle of view also helps to minimize the visible hand shake common in higher-power binoculars.

The comfortable ergonomic chassis is made of a fiberglass-reinforced polycarbonate to help reduce weight without sacrificing strength. It also adds impact and temperature resistance. Being resistant to temperature changes ensures the housing remains a constant temperature, even in cold and wet conditions. It 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 hinder the binoculars' ability to achieve sharp focus. The chassis is covered in a black and coyote brown rubber armoring that helps to protect them from drops and impacts and provides a slip-resistant grip.

Optical Performance

• 10x magnification
• 42mm objective lenses
• Roof prism optical path
• Compact Schmidt-Pechan prism design for correcting view and thinner optical tubes versus the more common Abbe-Koenig design
• SCHOTT ED glass elements reduce 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 multicoated optics for dust, dirt, and oil resistance plus improved light transmission, color rendition, sharpness, and contrast
• Short 5.25' close-focus distance
• Wide 60° apparent angle of view
• 330' field of view at 1000 yards

Use and Handling

• Closed-bridge configuration
• Large fast-focus center wheel
• ±3 right-eye dioptric correction
• 58-75.5mm interpupillary adjustment range
• Twist-up click-stop rubber eyecups for comfortable use with or without eyewear
• 14mm eye relief
• 4.2mm exit pupil

Construction Details

• Fiberglass-reinforced polycarbonate housing for impact, corrosion, and temperature resistance 
• Lightweight housing for less neck strain and lighter optic without sacrificing strength
• Protective black and coyote brown rubber armor
• Nitrogen-filled for fog and waterproof performance
• Submersible to 100 mbar of pressure, or approximately 3' (1m)
• Operating temperature 5 to 140°F (-15 to 60°C)
• Weight: 25.6 oz