Pentax SD 42mm WP Binoculars
Pentax SD 42mm WP BinocularsPentax SD 42mm WP BinocularsPentax SD 42mm WP Binoculars
Pentax SD 42mm WP BinocularsPentax SD 42mm WP BinocularsPentax SD 42mm WP Binoculars

Pentax SD 42mm WP Binoculars

£259.00✓ 2 year warranty
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Out of stock due 7-10 working days

About this product

Model:  pntx_sd_8x42_wp_62761
Part Number:  62761

Pentax S-Series

The Pentax S-series – Consists of both roof and porro prism models with objective lenses > 40mm so personal preferences are immediately defined. In addition to the newly developed light transmission coatings, waterproof porro prism models also boast the hydrophobic coating, thereby allowing for contrast-rich, bright viewing under rough outdoor conditions.

These binoculars meet the viewer’s traditional demand for 8x, 9x and 10x magnifications. It has all the quality features found in the entire roof prism range PENTAX has on offer: fully multi-coated lenses, inner focusing, water and dust proof, nitrogen-purged and phase correction coatings on the BaK4 prisms. The new Enhanced light transmission coating creates crystal sharp images.The polycarbonate housing makes the whole package a full-size light-weight. It also offers 4-stop, helicoid eyecups. When weight is a critical factor for you, then these binoculars are the perfect reason to upgrade to full size. 


  • New fully multi-coated optics
  • New enhanced light transmission coatings
  • Phase correction
  • Protective lens coating
  • Waterproof
  • Nitrogen purged
  • Inner Focus Optics design

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.

New Enhanced Light Transmission Coatings

PENTAX binoculars take quality optics to the next level by applying a new, optimised film-deposition technology on lens and prism surfaces resulting in increased light transmission which creates bright images with accurate colour rendition

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 maximise 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.

Inner Focus Optics Design

This sophisticated optical design is critical to low-maintenance and long life guarantee. Exposure to airbourne particles and moisture is avoided, thereby ensuring that no outside influences can penetrate the housing and disrupt functionality. 

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.

Other Features

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

Exterior rubber coating that provides the binoculars with superb resistance to shocks and impacts. 

What's in the box

  • SD WP Binoculars
  • Objective Lens Caps
  • Eyepiece Lens Caps
  • Carrying Case
  • Neck Strap
  • Lens Cloth
  • Instruction Manual


Product Code6276162762
TypeFull-size RoofFull-size Roof
Objective Lens Diameter42 mm42 mm
Field of View at 1000m131 m105 m
Exit pupil aperture5.2 mm4.2 mm
Eye Relief21 mm18 mm
EyecupsMulti-Stop Twist-UpMulti-Stop Twist-Up
Height52 mm52 mm
Width134 mm134 mm
Depth148 mm144 mm
Weight640 g615 g
Water proofYes (JIS Class 6) Nitrogen purgedYes (JIS Class 6) Nitrogen purged
AccessoriesObjective and eyepiece caps, case, strapObjective and eyepiece caps, case, strap
Prism coatingBaK4 with High Resolution Phase Correcting coatingBaK4 with High Resolution Phase Correcting coating
Lens coatingNew fully multi-coated optics, New enhanced light transmission coatings, Protective lens coatingNew fully multi-coated optics, New enhanced light transmission coatings, Protective lens coating
Twilight Factor18.320.5
Close focus2.5 m2.5 m
Tripod AdaptorWith adapter TP-3 PENTAX Code No. 69554With adapter TP-3 PENTAX Code No. 69554

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Q1. How much do these binoculars weigh?

The Pentax SD 8x42mm WP binoculars weigh approximately 640g / 22.58oz and the SD 10x42 WP binoculars weight 615g / 21.7oz.

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