Pentax SP 12x50 WP Observation Binoculars

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£299.00

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Rugged, waterproof and nitrogen purged, the Pentax SP 12x50 WP Observation Binoculars feature bright 50mm objective lenses and are designed for both astronomical and terrestrial viewing. In addition to the newly developed light transmission coatings, the SP 12x50’s also boast a hydrophobic coating, thereby allowing for contrast-rich, bright viewing under rough outdoor conditions.

Pentax SP 12x50 WP Observation Binoculars:

  • New fully multi-coated optics
  • Phase correction
  • Protective lens coating
  • Waterproof
  • 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 maximizing 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.

BaK4 prisms:

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.

Phase Correction:

The complex optical design of roof prism binoculars provide durable, compact, yet lightweight design but require a higher level of optical perfection. A phase-correction coating is applied in the full range of roof prism binoculars to maximize image viewing quality.

Pentax Waterproofing:

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 purged:

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.

Other Features:

Helicoid three-stop eyepiece rings that permit fine adjustment for maximum viewing comfort.

Specifications:

  • Type: Full-size Porro
  • Magnification: 12x
  • Objective Lens Diameter: 50 mm
  • Real field of view: 4.2°
  • Field of View at 1000m: 73 m
  • Exit pupil aperture: 4.2 mm
  • Eye Relief: 20 mm
  • Relative Brightness: 17.6
  • Eyecups: Multi-Stop Twist-Up
  • Height: 178 mm
  • Width: 183 mm
  • Depth: 79 mm
  • Weight:1.080 g
  • Water proof: Yes (JIS Class 6) – Nitrogen purged
  • Accessories: Objective and eyepiece caps, case, strap
  • Prism coating: BaK4
  • Lens coating: Fully multi-coated optics, Protective lens coating
  • Minimum focusing distance: 5.5 m
  • Twilight Factor: 24.5
  • Tripod Adaptor: With adapter N – Pentax Code No. 69553

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Product Specification

Angle of View (Degrees) 4.2
Exit Pupil (mm) 4.2
Eye Relief (mm) 20
Field of View (metres at 1000m) 73
Included Accessories Objective and eyepiece caps, case, strap
Magnification (x) 12
Minimum Focus Distance (m) 5.5
Objective Lens Diameter (mm) 50
Optical Coatings Fully multi-coated optics, Protective lens coating
Prism Type Porro
Relative Brightness 17.6
Size (mm) 178 x 183 x 79
Weight (g) 1080
Fog proof Yes
Manufacturer Link Pentax
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Product Code: 1600716-wex Manufacturers Part Number: 65873 Got a question? Get it answered...