12*42 Binocular Telescope Low Light Night Vision Sports Hunting Camping Survival Kit Magnification (x): 12x Diameter (mm) size: 42mm, Prism material: bak7, Prism system: the roof Field: 5.4 ?,An exit pupil distance: 13 mm, An exit pupil diameter: 3.5 mm, Close to the focal distance: 5 m Eye cup type: spiral rise, Green lens coating: broadband multilayer composite membrane, Lens: all-optical glass Waterproof level: life