ZEISS TERRA ED 8x42 BINOCULARS IDEAL FOR STALKING/DAYLIGHT HUNTING, OUTDOOR/LEISURE, BIRDWATCHING/WILDLIFE OBSERVATION, HIGH SEAT/NIGHT. ZEISS Terra ED binoculars are robust, reliable and easy to use. Their state-of-the-art and sleek design makes them not only light but comfortably compact. The highest optical precision and the hydrophobic multi-coating guarantee brilliant images down to the very last detail. The Terra ED binoculars are waterproof and nitrogen-filled, making them rough and ready. Terra ED binoculars are excellent value for money, making them the perfect entry into the world of ZEISS. A bright image, outstanding resolution of details and comfortable viewing characteristics. In combination with optimum ease of handling, these perfectly describe the outstanding properties of the Terra ED 42. Performance: Magnification: 8 Effective lens diameter: 42 mm Exit pupil diameter: 5.3 mm Twilight factor: 18.3 Field of view at 1,000 m: 125 m (410 ft) Subjective viewing angle: 56 Close focusing distance: 1.6 m (5.3 ft) Diopter adjustment range: 3.0 | + 3.0 dpt Exit pupil distance: 18 mm Pupil distance: 58 75.5 mm Lens type: ED Prism system: Schmidt-Pechan Features: LotuTec | Nitrogen filled: - | + Water resistance: 100 mbar Physical: Operating temperature: 15°C | + 60°C (+ 5°F | + 140°F) Length: 142 mm (5.6"") Width at an interpupillary distance of 65 mm: 120 mm (4.7"") Weight: 725 g (25.6 oz)