ZEISS 8×42 Terra ED Binoculars (Green)

ZEISS Terra ED 8×42 Overview

The green ZEISS Optics 8×42 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 field of view. Adding to the binoculars’ usability is a short 5.25′ close-focus distance that gives them the ability to resolve feathers or leaves in fine detail.

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 ensures the housing will remain a constant temperature in cold and wet conditions. It also prevents 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 green rubber armoring for a slip-resistant grip. It also helps protect against drops and impacts.

Optical Performance

• 8x magnification
• 42mm objective lenses
• Roof prism optical path
• Compact Schmidt-Pechan prism design for correct view and thinner optical tubes versus more common Abbe-Koenig design
• SCHOTT ED glass elements for less chromatic and spherical aberrations and views with true color rendition, without halos, diffraction, or distortion across the entire field of view
• ZEISS proprietary hydrophobic multicoated optics for better light transmission, color rendition, sharpness, contrast plus resistance to dust, dirt, and oils
• Short 5.25′ close-focus distance
• 376.5′ field of view at 1000 yards

Use and Handling

• Closed-bridge configuration
• Large fast-focus center wheel
• ±3 right-eye dioptric correction
• 58 to 75.5mm interpupillary adjustment range
• Twist-up click-stop rubber eyecups for comfortable use with or without eyewear
• Long 18.3mm eye relief
• Comfortable 5.25mm exit pupil

Construction Details

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