All the lenses and prisms in the BD42-10GR binoculars are manufactured with multi-layered coating, ensuring a bright and clear visual range, while the roof prism has phase correction coating and a highly reflective aluminum coating to ensure sharp images and accurate color reproduction. Through the use of a Bak4 prism these Kowa binoculars are able to give you bright, clear images all the way to the edge of the objective lens. Kowa's BD42-10GR roof prism uses the schmidt-Pechan prism, where one surface of the Pechan prism does not provide total reflection, so they have applied a highly reflective multi-coating of dielectrics, called a C3 coating. This allows for a much higher reflectivity than with coatings of silver or optically-enhanced aluminum, offering a reflectance of 99-percent or higher across the entire visible spectrum of 400 to 700 millimeters. Not only does this increase the brightness and sharpness of the images, but ensures an accurate color reproduction is also achieved. Furthermore, the roof surface of the Schmidt prism is phase coated (phase correction coated) to prevent the loss of contrast and image resolution.

• High-performance binoculars with an 10x magnification, provide an apparent field of view of 65 degrees and 354 feet at 1,000 yards
• Lenses and prisms are manufactured with multilayered coating, ensuring a bright and clear visual range
• Roof prism has phase correction C3 coating of dielectrics and a highly reflective aluminum coating to ensure sharp images and accurate color reproduction
• Housing is waterproof and filled with dry nitrogen gas to prevent the lens from fogging for use in the rain and other harsh weather conditions

Shipping Note: Shipping to Alaska, Hawaii, PO Boxes, and APO addresses is not available for this item

Warranty: Kowa 1 Year Warranty