Diamondback HD 10×50

The Vortex Diamondback HD 10×50 is a high-definition roof prism binocular, offering 10x magnification, 50mm objective lenses and a 6.0-degree angular field of view (315 feet @ 1000 yards). Key specs include 17mm eye relief, a 5mm exit pupil and a 6-foot focus,weighing roughly 30. oz.