10X42 Compact Binoculars for Adults - Long Distance, High Powered Binoculars with Travel Case - Extra Bright Light & Large Field of View - Lightweight, Water & Fog Proof, Hunting, Bird Watching

Magnification: Featuring 10x magnification and 42mm objective lenses, this high-definition binocular is constructed from selected glass to deliver superior resolution, offering edge-to-edge sharpness and clear light transmission.
Item size: 6.3 x 4.8 x 1.9 inches, 1.0 lb.
Coating: Quality FMC (Fully Multi Coated) lens and Porro/BAK4 prism; the multi-coated objective lens and eyepieces reflect light to ensure the viewing image is exceptionally bright and sharp.
Durability: Robust and water-resistant with a lightweight, portable design. It is shock and slip-resistant, comfortable to handle, and suitable for outdoor activities. Rubber armor provides a secure, non-slip grip and durable external protection.
Adjustable: Easy to focus with or without glasses. Eyecups can be twisted up and down for comfortable viewing. The center focus wheel adjusts the focus of both binocular barrels simultaneously. The central focus wheel and right eyepiece ring allow for simple adjustment of different view distances while maintaining high-definition vision.
Application: The 10x42 binocular is ideal for adults, kids, hiking, camping, sport events, bird watching, concerts, plays, shows, travel, theater, opera, and numerous other activities. This binocular includes its own carrying bag, neck strap, and cleaning cloth.
Exit Pupil: The exit pupil is calculated by dividing the objective lens diameter by the magnification (42/10 = 4.2 mm in this case). A larger exit pupil can be more forgiving in terms of maintaining a bright image in low-light conditions