Explore Scientific 52° Series 1.25" 20mm Waterproof Eyepiece

Comfort Meets Clarity

Want clear, comfortable, long-lasting stargazing sessions? Choose the Explore Scientific 20mm Eyepiece to view the stars without eye strain or slippery handling in the dark.

Features:

• 20mm Focal Length: Perfect for a wide range of celestial objects, offering a 1-degree true field of view with ED127 at f/7.5.
• 52° Apparent Field of View: Provides an immersive stargazing experience, letting you capture more of the night sky in one glance.
• Fully EMD Multi-Coated Optics: Maximizes light transmission for bright, sharp, and high-contrast images of the cosmos.
• Argon-Purged, Waterproof & Fog-Proof: Reliable in all weather conditions, from humid summer nights to frosty winter evenings.
• Slip-Resistant Textured Surface: Ensures a firm grip, even in wet or cold environments, so you can focus on observing without worries.
• Fold-Down Eyecup: Comfortable for both glasses wearers and non-glasses wearers, minimizing eye strain during long observation sessions.
• Compact and Lightweight: At just 181.4 g (6.4 oz), it's easy to carry and use, making it perfect for on-the-go stargazing.

The Explore Scientific 52° Series 1.25" 20mm Waterproof Eyepiece is for you if…

• You want sharper, clearer celestial views: This eyepiece enhances your stargazing experience with fully multi-coated optics that deliver bright, high-contrast images.
• You often observe in varied weather conditions: If fog or moisture has ever clouded your view, the waterproof and fog-proof design ensures crystal-clear performance in any climate.
• You love wide-field observation: Its 52° apparent field of view allows you to capture more of the night sky at once, perfect for viewing star clusters or nebulae.
• You prefer comfortable, extended observation sessions: With 15mm of eye relief and a fold-down eyecup, this eyepiece provides comfortable, strain-free viewing, even with glasses.
• You need a durable, easy-to-handle eyepiece: The slip-resistant textured surface offers a solid grip, even in the dark or when conditions get slippery.

Imagine standing under a crystal-clear night sky, telescope in hand, ready to explore the celestial wonders above. The Explore Scientific 52° Series 1.25" 20mm Waterproof Eyepiece is the key to making that experience more vivid and rewarding than ever before. Its 20mm focal length offers an ideal balance of magnification and field of view, allowing you to capture expansive star fields or focus on individual celestial objects like the Orion Nebula or the Andromeda Galaxy with remarkable clarity. The 52° apparent field of view immerses you fully in the cosmos, offering a wide-angle perspective that enhances every session under the stars.

What sets this eyepiece apart is the fully EMD multi-coated optics, which maximize light transmission, giving you brighter, sharper images. Every detail—from the craters on the moon to the swirling dust lanes of distant galaxies—becomes clearer, more defined, and more vibrant. Whether you’re exploring the Messier Catalog or hunting down faint nebulae, this eyepiece gives you an edge. The 15mm of eye relief ensures comfortable viewing, even during extended stargazing sessions, and is especially beneficial for those who wear glasses, ensuring you can enjoy uninterrupted views.

Durability is a major concern when you’re out in unpredictable weather, and the argon-purged, waterproof, and fog-proof design of this eyepiece ensures reliable performance no matter the conditions. Have you ever had your session cut short because your lens fogged up or moisture clouded your view? With this eyepiece, those issues are a thing of the past. Whether you're observing in the damp, cool air of a rural countryside or in a foggy coastal region, you can count on clear, crisp views throughout the night.

Handling and ease of use matter just as much. The slip-resistant, textured surface makes the eyepiece easy to grip and adjust, even in the dark or with cold fingers. This ergonomic design minimizes the frustration of fumbling with your equipment, so you can stay focused on observing. Its compact size also makes it ideal for binoviewers, offering a comfortable fit without sacrificing the high optical quality you expect.

If you’re serious about your stargazing, the Explore Scientific 52° Series 20mm Eyepiece is a must-have in your toolkit. It offers everything an amateur astronomer in search of clarity, durability, and comfort could ask for, making it perfect for capturing large swaths of the night sky in stunning detail. Whether you're viewing from a light-polluted urban area or a remote dark-sky location, this eyepiece delivers exceptional performance, giving you a front-row seat to the universe like never before.