Explore Scientific 52° Series 30mm Waterproof Eyepiece

The Explore Scientific 52° Series 30mm Waterproof Eyepiece is a low-power ocular built for deep-sky observing, where a wide true field of view and a large exit pupil make it easier to locate faint galaxies and nebulae. Its flat-field, multi-element design and waterproof housing make it a durable choice for visual astronomers who want a step up from a Plossl without stepping up to eyepiece prices to match.

• 52° Apparent Field of View: Wide true field of view simplifies locating and tracking large deep-sky objects at low power.
• 4 Elements in 2 Groups, Edge-Blackened: Multi-element flat-field optical design with EMD coating on all lens-to-air surfaces.
• Waterproof, Argon-Purged Housing: O-ring sealed and tested under 1 meter of water for 30 minutes.
• 19.9mm Eye Relief: Comfortable viewing distance, aided by a removable flip-down soft silicone eyecup.
• 1.25" Double-Taper Barrel: Standard barrel fits 1.25" focusers and accepts standard 1.25" filters.