The PENTAX PF-65ED and PF-65EDA both incorporate time-proven porro-prism optics and a 65mm objective lens with PENTAX-exclusive ED (Extra-low Dispersion) optical elements to deliver a sharp, high-contrast image 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. The PF-65EDA offers comfortable, fatigue-free viewing over many hours with its 45-degree slanted lens barrel.

These spotting scopes 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 an accessible reach by either hand. When mounted on a tripod, their lens barrel can be twisted 90 degrees clockwise or counterclockwise from the default 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. Their extendible rubber lens hood comes with a sight line to facilitate target-line adjustment.

To optimize the performance of these 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 32.5 times, respectively, with a 60 degree apparent field of view and a long 18mm eye relief. They also feature an extendible eyepiece ring with four click-stop positions. The smc PENTAX XF Zoom Eyepiece 6.5mm-19.5mm features a focal-length range of 6.5mm to 19.5mm for a magnification of 20 to 60 times, with an apparent field of view of 42 to 60 degrees and an eye relief of 11mm to 15mm. It also offers a user-friendly rubber eyepiece ring that never becomes too cold to touch while minimizing the risk of scratching the observer’s eyeglasses. In addition, four smc PENTAX XW-series telescope eyepieces (XW7, XW10, XW14 and XW20) can also be used on these spotting scopes.

These spotting scopes are also compatible with the optional PF-CA35 camera adapter, for conversion into high-quality super-telephoto lenses with a focal length of 780mm and a fixed aperture of F12 in combination with a PENTAX 35mm-format SLR camera.