Vivitar HD Zoom Series 10x60 Binoculars: * Suitable for use in low-light conditions * 1-year limited warranty * 10x magnification power * BK7 Porro prism design * 60 mm objective lens * Angular field of view: 5.8 degrees * Linear field of view: 300" (91.44m) at 1000 yards (914.4m) * Exit pupil diameter of 6mm * Diopter adjustment feature for optimum visual correction * Center wheel focus design for simplified focus adjustment * Multicoated high-definition lenses reduce glare and ensure sharp image reproduction * Weight: 2.95 lbs * Dimensions: 9.8"L x 8.75"W x 3.5"H * Model# VIV-MV-1060