Product Overview

The Pentax XW30-R Eyepiece SMC 30mm is built for serious backyard astronomers who want clean, wide-field views without fuss. With a 30mm focal length, 70° apparent field and generous 20mm eye relief, it frames big-ticket targets like the Pleiades, Andromeda and bright nebulae in one hit, while still staying comfortable for long sessions at the eyepiece – even with glasses on. The 2" barrel drops straight into modern focusers and plays nicely with fast Newtonians and Dobs, giving you sharp stars and strong contrast right across the field.

Inside, extra‑low‑dispersion lanthanum glass and full multi‑coatings work together to keep scatter and aberrations down, so faint detail pops and colours stay true. Pentax’s blackout control and JIS Class 4 weatherproofing mean you can keep observing through dew and drizzle without fighting kidney‑beaning or fogged optics. If you’re chasing a premium low‑power eyepiece that just works on Aussie skies – from dark country paddocks to suburban backyards – the XW30-R is a rock‑solid, long‑term upgrade to your visual kit.

Key Features

• 30mm focal length with a wide 70° apparent field of view lets you frame large nebulae, star clusters and galaxies in a single, immersive view.
• Generous 20mm eye relief and twist-up rubber eyecup provide comfortable viewing for extended sessions, even for users who wear glasses.
• Extra-low-dispersion lanthanum glass and advanced optical design minimise aberrations, delivering sharp, high-contrast images across the field.
• Fully multi-coated and phase-coated optics maximise light transmission, improving brightness and colour fidelity in low-light night-sky conditions.
• Large 2" diameter nosepiece offers secure mounting and full illumination in compatible telescopes, ideal for deep-sky, low-power observing.
• Slip-resistant textured housing and robust construction give a secure grip and dependable handling when adjusting or swapping eyepieces in the dark.
• Weatherproof JIS Class 4 design resists dew and light drizzle, allowing reliable use during typical night-time observing conditions.
• Helicoid eyepiece ring and adjustable light shield help you position your eye optimally, reducing blackout effects and enhancing viewing comfort.
• Edge-blackened optics and internal baffling suppress stray light and reflections, improving contrast on faint deep-sky objects.
• Standard 48mm filter thread and 2" barrel compatibility make it easy to use popular astronomical filters and accessories with this eyepiece.