About this product
Part Number: 65871
NEW updated Pentax S-series porro-prism binoculars with newly developed light transmission coatings and a hydrophobic coating (rain drops roll off) on the outer optics.
Provides bright, high contrast views in low light and the modern waterproof waterproof construction makes them an excellent choice for use in rough outdoor conditions.
The rubber armoured waterproof and nitrogen-purged body withstands weather, dust or rough impact.
- New fully multi-coated optics
- Phase correction
- Protective lens coating
- Nitrogen purged
- Unique hydrophobic coating
- Aspherical lens elements
- Magnesium alloy construction
New Fully-multi-coated optics
Fully multi-coated lenses serve the essential purpose of maximising
the amount of light passing through a lens, thereby prevent flare and ghosting from interfering with your view. PENTAX applies multiple layers of coatings to every surface of every element and prism in the full Sport Optics line-up. These fully-multi-coated optics assure the maximum light transmission resulting in a clear, crisp view of the world.
Protective Lens Coating
All optical surfaces are delicate and must be handled with care to prevent scratching. To add to the durability of the Z- and S-series Water Proof binoculars*, PENTAX has added a protective, nano technology coating that helps deflect water, oil, dust and dirt. This allows PENTAX binoculars to withstand the harshest viewing conditions.
Due to its outstanding refractive index, the BaK4 glass prism found in all PENTAX Sport Optics is highly acclaimed for its perfectly round exit pupil and clear, unvignetted image.
PENTAX waterproof products are fully sealed and purged with laboratory grade nitrogen to provide a fog proof view in the harshest weather conditions. With a JIS Class 6 rating, PENTAX waterproof binoculars can even be submerged in up to 3 feet of water.
Unique Hydrophobic Coating
Water droplets on a lens have a negative influence on the ability of light to enter the objective lens. By using a unique water repellent coating on all outer lenses we make water drops “bead” into small, deformed droplets. The deformed droplets cause less distortion and “slide” more easily off the lens. Your binocular remains fully functional even in rain, snow, fog or condensing breath.
Aspherical lens elements
Edge-to-edge sharpness is a vital element to comfortable viewing. To achieve this, we utilise aspherical lens elements in our eyepieces. This is a specially shaped lens design that reduces aberration to a minimum.
Nitrogen is a chemical element and a colourless, odourless and tasteless gas. It contains very little humidity and is therefore used to “purge” binoculars and spotting scopes of the high humidity air that is part of
our environment. Due to the low humidity factor, nitrogen prevents condensation from forming on the internal lenses of optical instruments during phases of rapid temperature change. Furthermore, because nitrogen is purged into the optical instrument at slightly above atmospheric pressure, dust and other miniscule particles are prevented from entering the housing.
Long eye relief design
The long eye relief offered in all PENTAX Sport Optics allows the viewer to see the entire field of view clearly and effortlessly. This is especially beneficial to eyeglass wearers, and allows viewing for extended periods of time without added eye strain.
Superb impact resistance
The body is made from magnesium, which adds toughness while keeping the binoculars light. In addition, the exterior rubber coating provides the binoculars with superb resistance to shocks and impacts.
Helicoid three-stop eyepiece rings that permit fine adjustment for maximum viewing comfort
What's in the box
- SP WP Binoculars
- Objective Lens Caps
- Eyepiece Lens Caps
- Carrying Case
- Neck Strap
- Lens Cloth
- Instruction Manual
|Objective Lens Diameter||40 mm|
|Field of View at 1000m||110 m|
|Exit pupil aperture||5 mm|
|Eye Relief||20 mm|
|Water proof||Yes (JIS Class 6) – Nitrogen purged|
|Accessories||Objective and eyepiece caps, case, strap|
|Lens coating||Fully multi-coated optics, Protective lens coating|
|Close focus||3.5 m|
|Tripod Adaptor||With adapter N – PENTAX Code No. 69553|
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Q1. How much do these binoculars weigh?
The Pentax SP 8x40mm WP binoculars weigh approximately 850g / 29.98oz.