Explore Scientific 92° Series 2" 12mm LER Waterproof Eyepiece

Unlock Hidden Details in the Night Sky

Craving brighter nebulae and sharper galaxies? Experience the Explore Scientific 92° eyepiece for immersive deep-sky views—without struggling to spot faint targets or losing detail at the edges.

Features

• Ultra-Wide 92° Apparent Field of View – Enjoy panoramic views that make object tracking easier and observing more immersive—even without motorized tracking.
• Generous 20mm Eye Relief – Comfortable for extended sessions and glasses wearers alike, with full field access and zero eye strain.
• Argon-Purged Waterproof Housing – Fully sealed against moisture and internal fogging—ideal for humid nights, dewy mornings, or high-altitude use.
• 2-Inch Barrel Compatibility – Designed for standard 2" focusers with secure fit and optical alignment on larger, premium scopes.
• Precision Lens Coatings (EMD) – Enhanced multi-layer coatings ensure maximum light transmission and contrast for deep-sky visibility.
• Field Stop Diameter: 27.46mm – Optimized for seamless edge-to-edge clarity and minimal distortion across the entire field.
• Durable, Heavy-Duty Construction – At 2.4 lbs, it's built to last and engineered to deliver rock-steady performance even with heavier telescope setups.

The Explore Scientific 92° 12mm is for you if…

• You’re using a Dobsonian or alt-az mount without tracking, and want a wide enough view to keep objects in frame longer without constant repositioning.
• You frequently observe faint galaxies, planetary nebulae, or globular clusters and need maximum contrast and light transmission to bring subtle details to life.
• You wear glasses while observing and need a high-eye-relief eyepiece that doesn’t compromise your view or comfort.
• You’ve been burned by other ultra-wide eyepieces with blurry edges, poor coatings, or internal reflections, and want sharp, flat-field performance from center to edge.
• Your observing sessions are often in damp, cold, or high-altitude environments, and you need an eyepiece that won’t fog up or fail due to internal moisture.

When you're out under dark skies, every detail matters. You’re not just looking—you’re chasing faint galaxies, teasing structure out of nebulae, and watching subtle shadows move across lunar terrain. The Explore Scientific 92° 12mm eyepiece gives you the optical edge to make those moments count.

That expansive 92° field of view isn’t just wide—it’s near the maximum possible for hyper-wide eyepiece design. The effect is immediate and immersive. You may even forget there’s an eyepiece between you and the universe, as the view stretches beyond the edges of your vision.

If you're using a non-tracking Dob or alt-az mount, this eyepiece helps objects stay centered longer, reducing the need for constant manual adjustment. It’s a massive advantage at 12mm focal length, where most eyepieces give you only fleeting glimpses before the object drifts.

It’s also a serious tool for deep-sky hunters. The high-transmission optics and ultra-wide view make locating faint targets faster. And when you're using averted vision to catch elusive details, this eyepiece puts those images onto the more light-sensitive parts of your eye—where they’re easier to see and harder to forget.

Comfort is built in. With a generous 20mm of eye relief, you get full-field views whether you wear glasses or not—no need to strain or reposition constantly. Your eyes stay relaxed, even during hours-long observing sessions.

And it's built for the field. The waterproof, argon-purged construction resists fogging and environmental wear, whether you're observing in a dewy field or at 8,000 feet. It’s heavy, yes—but solid, reliable, and ready to perform under real conditions.

If you're looking to upgrade not just your eyepiece, but your entire observing experience, this is it. It’s not just about seeing more—it’s about feeling closer to what you see.