"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. The smc PENTAX XF8.5 and XF12 are standard unifocal eyepieces, offering a focal length of 8.5mm and 12mm, and a magnification of 46 and 3|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|Waterproof and nitrogen filled (JIS Class 6) to handle the most extreme weather conditions|Magnesium alloy body for maximum durability with minimum weight|Built-in sunshade slides out to prevent glare when viewing into the sun|Rotating tripod collar allows positioning the scope for comfortable viewing|Full rubber housing protects the scope from shock and improves handling"