Pentax PF-80ED 80mm Spotting Scope (Straight Viewing) with SMC XW 16.5mm Eyepiece (2')

Ricoh Pentax SMC XW 16.5mm Eyepiece for Spotting Scopes and Astronomical Telescopes (2-Inch)

The Ricoh Pentax XW 16.5mm Eyepiece is used with high-grade spotting scopes. It offers high performance and clear wide-angle. The latest addition to the successful SMC Pentax XW series, it features an 85-degree apparent angle of view and 20mm eye relief to deliver comfortable and clear viewing.

Top Quality for Stunning Images

By incorporating high-refraction, extra-low-dispersion lanthanum glass elements, the XW 16.5 produces stunning images having minimal aberrations. It compensates for the spherical aberration of the pupil to reduce the disturbing blackout effect.

Efficient Light Transmission with Pentax-Original Multi-Layer

The lens surfaces that come in contact with air are specially treated with the Pentax-original multi-layer coating, and the laminated surfaces are treated with innovative partial coating. This treatment allows efficient transmission of light (up to 90 percent, and 96 percent at 550nm) over the visible light spectrum.

Advanced Light-Shielding Technology Delivers Better Image Contrast

The XW 16.5 features a light-shielding diaphragm at the most effective position. Pentax’s advanced computer simulation technology reduces internal reflections to produce high-contrast images.

Durable and Weatherproof Construction

With a JIS Class 4 weatherproof construction, the XW 16.5 can be used under drizzle or under night dew. However, it is not designed for underwater use, and submerging it underwater should be avoided.

Sleeve Size and Design of Eyecup

This eyepiece has a sleeve size of 50.8mm (installment diameter) and if you remove the screw-on eyecup, you can find the screw thread with a 43mm diameter and a 0.75 pitch.

Versatile Pieces for Every Purpose

Alongside the XW 16.5 Eyepiece, the XW series features versatile eyepieces that can be used for star-gazing to planet observation.

Pentax PF-80ED 80mm Spotting Scope (Straight Viewing, Eyepiece Required)

An ideal companion for hunters, shooters, birders, and nature enthusiasts of every stripe, the 45 degrees viewing Pentax PF-80ED 80mm Spotting Scope delivers bright and sharp high-contrast images with true-to-life color and crisp clarity—even in low or challenging light conditions. Image quality is enhanced through the use of extra-low dispersion rare earth lanthanum crown glass lens elements, in a 3-element/3-group configuration, with the proprietary SMC (Super-Multi-Coating) multi-layer coatings and BAK4 Porro prisms. These optical features work together to minimize aberrations while maximizing light transmission, increasing color fidelity and contrast, and improving clarity and resolution. The large 80mm objective boosts the spotter's light-gathering capability to keep views bright and clear in even the most challenging light conditions and when viewing subjects that are at extreme distances. This model is offered without an eyepiece, but a 1.25-inch collet-style press-fit holder accepts standard telescope eyepieces—which offer a dizzying array of magnification options from fixed to zoom—and holds them firmly and securely in place with a centered optical alignment. Optimized for your viewing comfort, the eyepiece holder is set at a 45 degrees to the body and the tripod mount collar allows the body to rotate. Taken together, these two features enable you to precisely place the eyepiece in a comfortable position that requires the least amount of head movement during use whether you are standing, sitting, or lying prone. The spotter's nitrogen-filled magnesium housing is water and fog-proof, making it able to handle extreme weather conditions and sharply changing temperatures without affecting its performance. The armored body absorbs light shocks in addition to providing a secure grip when conditions get wet or while wearing gloves. An objective lens shade is built into the front bell, which can further enhance image contrast and clarity by blocking light from causing glare and lens flare.