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Explore Scientific  |  SKU: EPWP8211–01

Explore Scientific 82° Series 1.25" 11mm Waterproof Eyepiece

$229.99 $275.99

Bonus offer: after adding this item to cart, add 3 other eyepieces + the soft-sided case to get it for Free ($49.99 value)

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Ships from US warehouse in 1-2 business days

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Explore Scientific 82° Series 1.25" 11mm Waterproof Eyepiece



  • 11mm Focal Length
  • 82° Field of View
  • 1.25" Diameter Barrel
  • Parfocal with All Eyepieces in Series
  • Long Eye Relief for Maximum Comfort
  • EMD Fully Multi-Coated Optics
  • Blackened Interior & Lens Edges
  • Argon Filled, Water and Fogproof
  • Slip-Resistant Textured Surface
  • Fold-Down Eyecup


Discover the Universe with Super-Wide Clarity

The Explore Scientific 82° Series 1.25" 11mm Waterproof Eyepiece is a cornerstone for any avid astronomer seeking to broaden their view of the cosmos. Offering an expansive 82° field of view combined with superior eye relief, this eyepiece is engineered for immersive observations, bringing celestial wonders into crisp, wide-angle focus.

  • Versatile 11mm Focal Length: Ideal for medium to high magnification, perfect for observing dense star clusters, intricate planetary nebulae, and vibrant cloud structures in comets.
  • Expansive 82° Apparent Field of View: Engage in a truly immersive viewing experience that captures vast cosmic landscapes without having to move your eye away from the eyepiece.
  • Exceptional Optical Performance: Features EMD fully multi-coated optics and blackened lens edges for heightened contrast and minimal internal reflection, ensuring dazzling clarity and detail.
  • Comfort and Durability Combined: Enjoy prolonged observing sessions thanks to the long eye relief, while the argon-filled, waterproof construction guarantees protection against all elements.
  • Designed for Ease and Precision: The parfocal design allows seamless switching between eyepieces without the need for focus adjustments, complemented by a slip-resistant textured surface and fold-down eyecup for enhanced usability.

Elevate Your Viewing Experience

Tailored for discerning observers, the 11mm 82° Series Eyepiece not only delivers on power but also on the comfort and quality that Explore Scientific is known for. Its ability to connect with Explore Scientific 2X, 3X, or 5X Focal Extenders means you can easily amplify your view without sacrificing the eyepiece's native field of view or eye relief.

A Full-Immersion Astronomical Adventure

Advanced optical design and the use of premium optical glass ensure that every observation is characterized by high contrast, high resolution, and a superior flat field. The ultra-wide field invites your eyes to relax, enabling the effective use of the "averted vision" technique to uncover faint details across a broad vista.

Precision Craftsmanship for the Enthusiast

Assembled with meticulous attention to detail, each eyepiece features precision-machined metal barrels that guarantee years of reliable performance. To further enhance your viewing experience, all internal surfaces and lens edges are treated to minimize light scattering, ensuring that your celestial observations are nothing short of spectacular.

A Journey Through the Stars

The Explore Scientific 82° Series 11mm Eyepiece is more than just an optical instrument; it's your ticket to a breathtaking journey through the stars. With its combination of wide-field views, optical excellence, and comfortable observation, it's an essential tool for anyone passionate about unlocking the mysteries of the night sky.

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Explore Scientific 82° Series 1.25" 11mm Waterproof Eyepiece | EPWP8211–01 | 812257014606

Explore Scientific 82° Series 1.25" 11mm Waterproof Eyepiece

$229.99 $275.99





Focal Length

11 mm

Focal Ratio


Field of View



Enhanced multi-layer deposition (EMD) coatings

Argon-purged, water and fog proof

15.6mm eye relief

15.9mm field stop diameter

Barrel Size



87mm length

48mm width


279 g | 9.8 oz
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