Explore Scientific 62° Series 1.25" 5.5mm Waterproof Eyepiece

The 62° Series 5.5mm combines high magnification with Long Eye Relief for comfortable, strain-free planetary observing — a real advantage at short focal lengths where cheaper eyepieces force you to press your eye uncomfortably close. Argon-purged waterproof construction and EMD coatings make this a serious upgrade from kit eyepieces at a very accessible price.

Key Features

• Long Eye Relief (LER) design — maintains comfortable viewing distance even at high magnification, a significant benefit for eyeglass wearers
• Argon-purged waterproof housing — sealed against moisture, fog, and humidity for reliable all-weather performance
• Enhanced Multi-Layer Deposition (EMD) coatings on all air-to-glass surfaces for high contrast and light transmission
• 62° apparent field of view — noticeably wider than standard Plössl designs, making it easier to track objects and stay oriented
• Fold-down silicone rubber eyecup for flexible eye positioning
• 1.25" barrel fits standard focusers on all common telescope types

Ideal For

• Eyeglass wearers who struggle with short eye relief on high-power eyepieces — the LER design keeps the full field visible without removing glasses
• Planetary and lunar observers who want high magnification with a wider, more immersive view than a standard 52° eyepiece
• Extended observing sessions where comfort matters — long eye relief reduces fatigue during hours at the eyepiece