Explore Scientific 68° Series 2" 40mm Waterproof Eyepiece

Unlock the Full Beauty of the Cosmos

Craving a truly immersive stargazing experience? The Explore Scientific 68° Eyepiece delivers breathtaking wide-field views and stunning clarity—without the frustration of edge distortions or discomfort during long sessions.

Features

• 40mm Focal Length for Deep-Sky Exploration: Perfect for sweeping across vast celestial objects like the Milky Way, nebulae, and galaxy clusters with unmatched clarity.
• Expansive 68° Field of View: Immerse yourself in a panoramic view of the night sky, offering breathtaking perspectives of wide star fields and distant galaxies.
• Fully Multi-Coated Optics: Advanced multi-layer coatings ensure exceptional light transmission, contrast, and color fidelity for crystal-clear observations.
• Argon-Purged, Waterproof, and Fogproof: Designed to withstand harsh weather conditions, ensuring long-lasting durability and a clear view, no matter the environment.
• 31mm Long Eye Relief for Comfortable Viewing: Enjoy extended stargazing sessions with comfort, even if you wear glasses, thanks to generous eye relief and a fold-down silicone eyecup.
• Slip-Resistant Textured Surface: Ensures a secure grip, even in cold or wet conditions, so you can focus on the stars, not your equipment.
• Parfocal Design: Seamless transitions between eyepieces without the need for refocusing, allowing you to maintain your observational momentum.
• Compact and Portable: At just 114.2mm in length and 998g in weight, this eyepiece is easy to carry to remote observation sites for a more flexible stargazing experience.

The Explore Scientific 68° Series 2" 40mm Waterproof Eyepiece is for you if…

• You’re passionate about deep-sky observation and want a wide field of view to fully appreciate celestial landscapes like nebulae and star clusters.
• You demand top-tier optical performance, with sharp, edge-to-edge clarity and superior contrast, to bring faint details of the universe into focus.
• You frequently stargaze in outdoor environments and need an eyepiece that’s built to last—waterproof, fogproof, and durable in various weather conditions.
• You prioritize comfort during long viewing sessions and require long eye relief for a relaxed, strain-free experience, even with glasses.
• You value efficiency and want an eyepiece that allows quick changes between magnifications without losing focus, so you can stay immersed in your observations.

Imagine being able to explore the vastness of the universe with an eyepiece that reveals celestial wonders in breathtaking detail. The Explore Scientific 68° Series 2" 40mm Waterproof Eyepiece offers an expansive 68-degree field of view, allowing you to take in wide sections of the night sky, perfect for observing the Milky Way, nebulae, or even entire galaxy clusters. With a generous 40mm focal length, you’ll be able to see objects in space with incredible depth and clarity, making it feel like you’re traveling through the stars.

When it comes to stargazing, image quality is everything. This eyepiece is equipped with fully multi-coated optics and enhanced multi-layer deposition (EMD) coatings, which ensure maximum light transmission and reduce internal reflections. This means you’ll experience brighter, sharper, and more contrast-rich views, even when observing faint objects like distant galaxies or nebulae. The flat-field design eliminates edge distortions, giving you consistent clarity from the center to the edge of your view, a feature that's often lacking in standard eyepieces.

Comfort is crucial for those long observation sessions, and the Explore Scientific 40mm Eyepiece delivers with its 31mm eye relief and fold-down silicone eyecup. Whether you wear glasses or prefer viewing without them, you’ll be able to comfortably enjoy extended sessions without eye strain. The slip-resistant textured surface also ensures you have a secure grip in any conditions—cold, wet, or dry—so you can focus entirely on the night sky without worrying about your equipment slipping.

This eyepiece is built for durability. It’s argon-purged, making it completely waterproof and fogproof, ideal for use in varying outdoor conditions. Whether you're observing in humid, frosty, or dry environments, the eyepiece's internal components remain protected, ensuring a clear view every time. The argon filling also protects against contaminants like fungus, ensuring the longevity of your optics. It’s an investment designed to withstand years of exploration and use in the field.

Tired of losing focus every time you switch eyepieces? With its parfocal design, the 68° Series Eyepiece eliminates the need to constantly refocus when changing magnifications, saving you time and letting you stay immersed in the observation. This feature is a game-changer for serious stargazers who want a seamless, uninterrupted experience as they shift between different views of celestial objects.

By choosing the Explore Scientific 68° Series 2" 40mm Waterproof Eyepiece, you’re not just buying an accessory—you’re elevating your entire stargazing experience. With its high-end optics, weatherproof durability, and user-friendly design, this eyepiece is perfect for anyone who’s serious about deep-sky exploration. If you want to see the universe in a way that most people never will, this eyepiece is your key to a clearer, more immersive, and awe-inspiring journey through the cosmos.