Kenko 429051 Ultraviue I Monocular, 7-21 x 21, 7-21x, 0.8 inch Diameter, Zoom Type, Blue (21 mm)

Magnification: 7-21x Objective lens diameter: 0.8 inches (21 mm) Coating: Multi-coating Prism: BK7 Prism Field of view: 4.8 - 2.3° Field of view from 1000 meters: 83.8 - 40.1 yards (83.8 - 40.1 m). Pupil Diameter: 0.1 - 0.04 inches (3 Brightness: 9 - 1 Eye relief: 0.5 - 0.4 inches (12.5 - 9 mm) Minimum focusing distance: 9.8 ft (3 m) Weight: 2.5 oz (74 Size:35x35x102mm Zoom monocular with adjustable magnification to fit what you want You can choose according to what you want to see. Increase magnification and enjoy powerful scenes. Includes monocular case, neck strap and lens cloth. Ultra Compact Type: Weighs only 2.5 oz (74 g). Lightweight and compact so you can easily take it anywhere 【Zoom Monocular】 Zoom type that can change the magnification between 7x and 21x. You can see a larger view from normal magnification [Multi-layer coating] Uses multi-coated for light transmission Brighter vision than magenta court [Twist-up Eyelet] You can easily adjust the eye point with one touch, even if you are not wearing glasses or wearing glasses Magnification: 7-21x