... FREE Pouch | gift box | Six languages manual | Auto Focus Binoculars | BK-7 Prism | Tripod Adapter Fitting | FREE Pouch | gift box | Six languages ... 50mm objective lens rovides optimum light allowance, and the 7.1mm exit pupil provides brightness and clarity,even in low ... bright, crisp images, and feature the Porro rism system and BK-7 prism glass. Ergonomic, rubber armoring provides durability and a ...