Established in 1995, Guanghi Optical Instrument Co., Ltd. is a joint stock China pentax spotting scope manufactuer and designer engaged in the manufacturing and marketing of a wide variety of Optical Instrument and products. Our products are widely applied in the education of students, research in lab, entertainment and science explore. During more than one decade's development, our products have awarded the CE certificate. We also have our own quality control system and customer' service system. So we can accept the order against customers' samples, specifying designs, specifications, and packaging requirements. We also prepared to accept the OEM and custom pentax spotting scopes with customer's own trade marks or brand names.

The Pentax PF-80ED is a new concept in premium quality spotting scopes. Engineered to meet the needs of the avid wildlife viewer, this scope incorporates ED glass elements, porro-prism optics and a nitrogen filled (JIS Class 6) waterproof body producing outstanding brightness, clarity and resolution even under demanding conditions. Add in, that the PF-80ED utilizes Pentax telescope eyepieces renowned for their sharpness, field of view, contrast and freedom from aberration, and you have a world class-viewing instrument.
Features
The Pentax PF-80ED is housed in an exceptionally lightweight magnesium-alloy body
Incorporating Extra-low Dispersion (ED) glass elements for optimum optical resolution
Large 80mm objective lenses for bright viewing under all light conditions
The body of the PF-80ED incorporates the American standard 1 1/4-inch (31.7mm) - diameter eyepiece receptacle, which accepts not only the optional Pentax XL eyepieces, but also other telescope manufacturers' eyepieces on the market
The receptacle has a special "O" ring assembly, which allows the body of the scope to be filled with nitrogen, making it fog proof and JIS Class 6 waterproof
A built-in lens shade cuts excessive light and helps to prevent rain and other weather elements from interfering with viewing

Improved optical design
Fully-multi-coated optics provide maximum light transmission and reduced internal reflections
ED glass optical elements provide greater color accuracy and resolution
Aiming line built into hood for quick subject acquisition
1.25" eyepiece attachment accepts any Pentax eyepiece from a 20x-60x zoom eyepiece to a host of fixed, high quality eyepieces
Designed for high-quality, high-precision outdoor viewing. The PENTAX PF-65ED incorporates porro-prism optics and a 65mm objective lens with PENTAX-exclusive ED (Extra-low Dispersion) optical elements to deliver sharp, high-contrast images with minimal chromatic aberration. The PF-65ED features a straight-line lens barrel for quick, effortless subject spotting, even when the observer is on the move. This spotting scope also feature a compact, lightweight body with nitrogen-filled waterproof construction (JIS Class 6), a collet-type eyepiece receptacle for an American-standard 31.7mm (1.25 inch) sleeve, a protective rubber housing, and accessible reach by either hand. When mounted on a tripod, the lens barrel can be twisted 90 degrees clockwise or counterclockwise from thedefault position at top or 180 degrees from side to side along with easy-to-locate pointers at top and 45-degree angles, to assure the best viewing position. The extendible rubber lens hood comes with a sight line to facilitate target-line adjustment. To optimize the performance of these new spotting scopes, PENTAX has developed three compact, high-performance XF-series eyepieces, all featuring a bright, high-contrast image, an American-standard 31.7mm sleeve and focal lengths ideal for outdoor viewing and bird watching.

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