Vortex Triumph HD 10x42 Binoculars 10x magnification 42mm objective lenses HD optical system .67" (17mm) eye relief Linear field of view: 334' @ 1000 yards Angular field of view: 6.4 Close focus distance: 15.3' Interpupillary adjustment range: 2.16"-2.95" (55mm-75mm) Adjustable diopter Adjustable eyecups Center focus wheel Fully-multicoated lenses Roof prism system Rubber Armor texturized grip and protective armor Waterproof, fogproof, shockproof O-ring sealed and nitrogen purged Tripod adapter compatible Length: 6.1" Width: 5" Weight: 22.9oz Includes lens cloth, comfort neck strap, eyepiece lens covers, tethered objective lens covers, GlassPak binocular harness and case VIP Warranty, unlimited, lifetime, transferable