The Pentax 10 x 50 PCF WP II Binoculars feature large objective lenses for superior light gathering in even the lowest light conditions.

• Nitrogen filled waterproof (JIS class 6) construction allows these binoculars to be used in the most extreme weather conditions and to be submerged to 1 meter.
• Aluminum diecast body adds strength and durability.
• Long eye relief for viewing without glasses.
• Mechanical focus lock feature allows user to lock in at specific distance for convenient focus free viewing.
• Click-stop diopter adjustment locks in right eyepiece diopter setting.
• Ruggedly constructed with a rubber housing to protect the internal optical and mechanical systems.
• Helicoid eyepiece ring with four click stops give the most comfortable eye relief.
• Binocular Type: Porro Prism center focusing (built in focusing arm).
• Lens construction: 2 elements in one group.
• Coating: Lens-full multi coating, Prism multi coating.
• Magnification: 10 X.
• Objective Lens: 50 mm.
• Real Field of View: 5.0 degrees.
• Apparent field Of View: 50 degrees.
• Field Of View at 1000 Meters: 87m.
• Field Of View at 1000 Yards: 261 Ft.
• Exit pupil: 5.0 mm.
• Eye Relief: 20 mm.
• Relative Brightness: 25.
• Diopter Adjustment Range: +/-2m-1.
• Eye Width Adjustment Range: 57 mm to 72 mm.
• Focusing Range: 18.2 ft.
• Eyepiece Ring: Heliciod type.
• Size: :Height-7.0 in. x Width- 7.2 in.
• Weight:34.2 oz.