Pentax 7x50 Marine Binoculars

Features:

• Available in 7X50 which gives the ideal magnification and objective lens diameter for viewing on or around water
• Built-in Compass, with an easy to read compass scale, on liquid bearing for quick dampening
• Ranging reticle to determine distance from object or object size from a distance
• LED Compass Illuminator for low-light or night use
• Nitrogen-filled, waterproof construction allow these binoculars to be used in the most extreme weather conditions
• High-resolution phase-coated and super-reflective coated BaK-4 roof prisms provide high resolution, high contrast images
• Fully multi-coated lenses increase light transmission and color quality
• External lens coating prevents the elements from obscuring your view
• Rubber covered exterior provides a sure grip and protects the internal mechanisms from damage
• Helicoid eyepiece ring gives the most comfortable eye relief
• Inner-focus optical design adds to the durability
• Long eye-relief for viewing with or without glasses
• Click-stop adjustment locks in the right eyepiece diopter
• Covered by the PENTAX Worry-Free Warranty

Specification:

• Type: Roof Prism, center focusing
• Lens Construction: 7 elements, 5 groups
• Coating: Lens: Full multi-coating; Prisim: Phase coating; Sub-Prisim: Super Reflection coating
• Magnification: 7X
• Objective Lens Diameter: 50mm
• Real Field of View: 6.66 degrees
• Apparent Field of View: Field of View At: 1000m (1000yd) 116m (350ft)
• Exit Pupil: 6.8mm
• Eye Relief: 17.6mm
• Relative Brightness: 46.2
• Diopter Adj. Range: +/- 3
• Eye Width Adj. Range: 56-73mm (2.2-2.9in)
• Focusing Range: 3m to infinity (9.8ft to infinity)
• Eyepiece Ring: Helicoid
• Body Color: Green
• Waterproof: Yes (JIS Class 6 to 1.5m)
• Height & Width: 6.9 x 4.7in
• Thickness: 2.3in
• Weight: 33.6 oz