PEN1102 Features: * Wide angle rubber covered binocular * Available in 10x, 12x or 16x magnification * Large objective diameter for enhanced dim light viewing * Fully coated lenses * Ergonomic comfort-fit grip * Rubber armoring for protection and durability * Fold down eye cups * Eyepiece rain guards * Stylish and functional carrying case * Wide neck strap * Magnification: 8x * Objective lens diameter: 52mm * Focus system: Center * Prism type: Porro * F.O.V. (ft @ 1000 yds): 342 for model no. 217, 294 for model no. 218 and 221 for model no. 219 * Exit pupil:5.2mm for model no. 217, 4.3mm for model no. 218 and 3.2mm for model no. 219 * Eye relief: 13mm for model no. 217 and 218, 8mm for model no. 219 * Tripod adaptable * Prism material: BK7 * Type of case: Vinyl * Diopter design: Eyepiece * Eye cups: Twist up Warranty: * Manufacturer provides lifetime warranty