PENTAX - Binoculars AD Series 8x25

Ref : 62881PENTAX

Available

Descriptive :

PENTAX - AD 8x25 Series Binoculars:

√ New Multi-Coated Lens Coating
√ New coating for light transmission
√ Waterproof and nitrogen purged (JIS Class 6)
√ Highly reflective prism with special prism treatment
√ Rubber finish
√ Comfortable eye relief and minimum focus
√ Internal focus
√ Retractable eyecups

A Series – Comprised of models with porro prism and roof prism with wide lenses < 40mm. Offering excellent aiming quality thanks to numerous lens treatments, this series is reliable, compact and easily transportable. Users will appreciate its convenience without compromising on quality.

Thanks to new multi-coated lens coating, special prism coating, BaK4 prism, and new coating for light transmission, the AD WP binoculars deliver crisp, clear images with superb contrast. They have all the qualities of the PENTAX roof prism binoculars: internal focusing system, waterproof and dustproof, nitrogen treatment, rubber finish, central wheel and retractable windshields. With their modern and compact design as well as their excellent performance, they offer remarkable viewing comfort.

Main characteristics :

New Multi-Coated Lens Coating

The multi-coated lens coating allows for better transmission of light through the lenses and prevents the risk of flare and ghosting. PENTAX applies several layers of coating to each surface of the lenses, the Prism and this for the entire range of binoculars. This treatment guarantees better light transmission for sharper aiming.

New coating for light transmission

The complex optical design of Roof Prism binoculars provides reliability and compactness but demands a high level of optical perfection. A special coating on the facets of the Roof Prism is required for maximum aiming quality. PENTAX optimizes this quality by applying a new surface film technology on the lenses and the Prism for better results in color rendering and brightness.

BaK4 prism

Thanks to its incredible refractive index, the BaK4 glass prism, found in all PENTAX binoculars, is highly regarded for its circular pupil exit and absence of vignetting.

Special treatment of prisms

For “roof prism” type binoculars, light rays are what restrict light transmission. With this treatment the light rays suffer no loss. Unlike other manufacturers who only use this treatment on their high-end models, PENTAX applies it to all these “roof prism” type models.

Sealing

PENTAX waterproof products are fully sealed and purged with liquid nitrogen in the laboratory, for fog-free aiming in the harshest conditions. With the JIS Class 6 standard, the PENTAX waterproof binoculars can even be submerged 1 meter underwater.

Construction with internal focus

This design is ideal for waterproof models that require completely sealed construction. This also contributes to maximum reduction in size and weight and improves the center of gravity as well as reliability.

Nitrogen purged

Nitrogen is a chemical element and a colourless, odorless and tasteless gas. It contains very little moisture and is used to purge binoculars and spotting scopes of the very humid air that is part of our environment. Due to the low humidity factor, nitrogen prevents the formation of condensation on the internal lenses of optical instruments during rapid temperature changes. In addition, the gas seal being made slightly above atmospheric pressure, dust and other tiny particles cannot enter the body of the instrument.

Long eye relief

The comfortable eye relief found in almost all PENTAX binoculars allows the user to maintain the entire field of view clearly and comfortably. This is particularly beneficial to wearers of glasses, and allows long periods of observation without straining the eyes.

Rubber exterior finish

It offers effective protection against shocks and impacts.