Burris 300279 Droptine HD 10X42mm Roof Prism Fast Focus, Black Aluminum Binoculars Dominate Low-Light conditions And Alleviate Eye Fatigue With The Droptine HD Binoculars, a Fusion Of unrivaled Clarity And uncompromising Quality. The Burris Droptine HD 10X42mm Binoculars Bring Intricate details To Life Without adding unnecessary Weight Or Bulk. Featuring a Powerful 10X Magnification; Center Focus Knob provides Quick Adjustment And Twist-Up eyecups Make Them Easy To Use With eyeglasses And BaK 4 prisms Produce Sharper images And Edge-To-Edge Clarity. Includes Neck Strap, Objective Lens Cover And Carry Case. Specifications: - Magnification: 10X - Objective: 42mm - Field Of View: 330 ft @ 1,000 yds - Eye Relief: 15mm - Exit Pupil Diameter: 4.20mm - Short Focus: 7.50 ft - Prism Type: Roof - Weight: 25.60 Oz - Focus Type: Fast - Optic Coating: Fully Multi Coated Manufacturer: Burris Mfg Number: 300279 Model: Droptine HD