FULL-SIZE PERFORMER IN A SEMI-COMPACT BODYn- New fully multi-coated opticsn- New enhanced light transmission coatingsn- Fully waterproof and nitrogen-purged (JIS Class 6)n- Super Reflective Prism coating, including phase correction coatingn- Rubber covered body provides protection and gripn- Comfortable eye-relief and close-focusn- Inner focusingn- Twist-up eyecupsnnA-seriesnThe A-series consists of roof and porro prism models with objective lenses < 40mm. Offering impeccable viewing quality through the application of the same advanced coatings, this series is considered the compact, portable and durable smaller brother of the S-series. Users can enjoy a mobility convenience without compromising optical performance.nnThanks to new fully multi coated lenses, phase correction, BaK4 prism, and new enhanced light transmission coating, these binoculars provide crystal sharp images and superb contrast. They have all the quality features found in the entire roof prism range PENTAX has on offer: inner focusing, water and dust proof, nitrogen-purged, fully rubberized body, focus wheel and twist-up eyecups for comfortable handling and easy focusing. Thanks to modern design, compactness and high performance features, they deliver outstanding viewing enjoyment.nnNew Fully-multi-coated opticsnFully 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.nnNew Enhanced Light Transmission CoatingsnPENTAX binoculars take quality optics to the next level by applying a new, optimized film-deposition technology on lens and prism surfaces resulting in increased light transmission which creates bright images with accurate color renditionnnBaK4 prismsnDue 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.