Product Overview

The Pentax SMC XW 10mm Eyepiece is built for shooters and spotters who care about what they can actually see, not how fancy the spec sheet looks. With a 10mm focal length, 70° apparent field of view and generous 20mm eye relief, it delivers a bright, wide, comfortable image that makes long glassing sessions feel easy – whether you’re picking detail off a distant hillside or reading mirage on the range.

High‑refraction, low‑dispersion lanthanum glass and Pentax’s Super Multi Coating keep the view sharp and clean right across the field, with excellent contrast and minimal colour fringing. The 1.25" / 31.7mm barrel drops straight into Pentax PF‑65, PF‑80 and PF‑100 spotting scopes and most telescope focusers, while the helicoid eyecup lets you fine‑tune eye position, especially handy if you wear glasses.

Weatherproof to JIS Class 4, the XW 10 shrugs off drizzle, dew and typical Aussie field conditions, so you can stay on the glass when the weather turns. If you want a high‑power eyepiece that holds detail, stays comfortable and just quietly does the job day in, day out, this is the one to bolt onto your spotter.

Key Features

• 10mm focal length delivers high-power magnification, ideal for detailed lunar, planetary and long-distance terrestrial viewing.
• Wide 70° apparent field of view gives a spacious, immersive image that makes tracking and framing subjects easier.
• Generous 20mm eye relief provides comfortable viewing for extended sessions and allows eyeglass wearers to see the full field.
• Seven-element, six-group optical design with high-refraction, low-dispersion lanthanum glass produces bright, high-resolution images with minimal aberrations.
• Fully multi-coated lenses and advanced light-shielding technology boost light transmission and contrast for clearer views in challenging light.
• JIS Class 4 weatherproof construction protects the eyepiece from light rain and dew, supporting reliable use in the field.
• 1.25" (31.7mm) barrel with 28.6mm filter thread fits standard telescope focusers and accessories for broad compatibility.
• Helicoid/twist-up eyecup lets you fine-tune eye position, improving comfort and reducing stray light around the eye.
• Compatible with Pentax PF-65, PF-80 and PF-100 spotting scopes, enabling both terrestrial and astronomical use from a single eyepiece.
• Robust 390g build with textured grip ring offers a solid, secure feel when changing eyepieces in the dark or with gloves.