Zeiss‘s black 10×42 Terra ED Binocular combines SCHOTT ED glass elements and a compact weather-sealed housing to create a multi-purpose optic that delivers the image quality and streamlined silhouette for birders and hunters seeking a budget-friendly set of glasses that do not sacrifice twilight performance or functionality. At the core of Terra ED are fully multi-coated SCHOTT ED glass lenses designed to maximize light transmission and render contrast-rich images. They also boast the ability to focus down to less than 6 ft, allowing observers to get up close to the bird or other nearby subject of interest Thanks to a space-saving Schmidt-Pechan roof prism design and lightweight composite housing, this binocular weighs just a pound and a half.
Complementing the high-transmission optical path and modest form factor, the Terra ED has a nitrogen-filled housing that provides fogproof performance and has been tested to withstand submersion to a depth of approximately 3 ft. This water and fogproof performance, coupled with a broad operating temperature range, enables these binoculars to stand up to almost any outdoor observational situation. A textured center focus wheel and twist-up rubber eyecups supply additional handling features that enhance the overall ergonomics and help make it a full-featured binocular for close to mid-range use.
Optical Performance
- 10x magnification
- 42mm objective lenses
- Compact Schmidt-Pechan roof prisms
- SCHOTT Extra Low-Dispersion (ED) Glass: Corrects chromatic aberration for true color rendition and improved contrast
- Proprietary Zeiss hydrophobic and anti-reflection fully multi-coated optics
- 60° apparent viewing angle, 330ft (100m) field of view at 1000 yd
- 5.25 ft (1.6m) close focusing distance
Use and Handling
- Closed bridge configuration for balanced handling
- Rapid focus center wheel with gripping ridges
- Twist-up rubber eyecups for use with or without eyewear
- ±4 right eye dioptric correction, center adjustment wheel
- Interpupillary Adjustment Range: 56-74mm
- 14mm eye relief
- 4.2mm exit pupil
Construction Details
- Protective rubber armor
- Nitrogen-filled for water and fogproof performance
- Submersible to 100 mbar (approximately 3ft / 1m)
- Operating Temperature: -14 to 131°F (-26 to 55°C)
- Weight: 25.4 oz (720g)




































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