Monocular Compact Telescope, iBlood 16x52 Dual Focus Monocular Telescope Telephoto Lens for Hunting Camping Surveillance Binocular Multi-coated optics, superior light transmission and brightness Front and back adjustable zoom, dual focus. 16x magnification and a 52mm objective diameter. Field of view: 98m/8000m. Size: 145 x 52 x 40 mm. Rubber Armored. For sporting events, concerts, bird watching, camping, fishing, golf, scope, football watching and travelling.