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Zeiss's deep blue 8x42 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.
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
56° apparent viewing angle, 375 ft (114m) 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
18mm eye relief
5.3mm exit pupil
Protective rubber armor
Nitrogen-filled for water and fogproof performance