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Astronomy Haven Promo Alert: Buy any four in-stock premium waterproof eyepieces and get a free soft-sided eyepiece case from us!
To Activate Deal: Add four in-stock premium waterproof eyepieces to your cart. Upon confirming your order, we'll include this handy case in your shipment.
Grab it while our supplies last!

What distinguishes the Explore Scientific 82° Series 11mm Waterproof Eyepiece?
The 11mm 82° Series Waterproof Argon-Purged Eyepiece offers you an exclusive ticket to an awe-inspiring cosmic journey! With a versatile focal length offering medium-power magnification, its super-wide apparent field and generous eye relief are your tickets to observing celestial wonders in unmatched detail! Envision exploring globular star clusters, capturing the intricate beauty of planetary nebulae, and witnessing dynamic cloud structures near comet nuclei. It's also your go-to for a closer look at planets and observing solar activity (with the right filter).
Featuring cutting-edge design, a blend of low dispersion and high refractive index optical glasses, and durable enhanced multilayer deposition (EMD) coatings, its design is optimized for unparalleled contrast resolution and a flat field. Crafted with precision in sturdy metal barrels, it minimizes reflections, ensuring a clear, distraction-free view.
Now, here's the deal-sealer. This eyepiece is part of the 82º Series. The mesmerizing visual impact of these eyepieces, characterized by an expansive 82° apparent field and extended eye relief, delivers a truly transformative full-immersion experience. Your eye is relaxed, which makes prolonged observations a breeze, but it also allows you to easily use the "averted vision" technique to study faint details across a huge field-of-view.
Now, let's seal the deal. This eyepiece belongs to the 82º Series, known for its captivating visual effects featuring a broad 82° apparent field and extended eye relief. It provides an immersive experience that truly transforms your observation sessions. With your eyes at ease, extended stargazing becomes effortless, and you can effortlessly employ the "averted vision" technique to examine faint details across a vast field of view.
Uncover intricate details you may have overlooked and immerse yourself in the cosmic panorama using the Explore Scientific 82º Series 11mm waterproof eyepiece!
PRO HACK: Pair it with Explore Scientific Focal Extenders to unlock 2x, 3x, or 5x magnification boosts while preserving the eyepiece's inherent apparent field and eye relief.
Why choose the Explore Scientific 82° Series 11mm Waterproof Eyepiece?
1. Varied magnification for celestial exploration
The 11mm 82° Series Waterproof Argon-Purged Eyepiece invites astronomers into the realm of medium-power magnification with its optimum focal length, proving invaluable for diverse celestial observations.
2. Enhanced viewing experience with Focal Extender
Opening up a universe of possibilities, the 11mm 82° Series Eyepiece seamlessly integrates with Explore Scientific Focal Extenders, providing a symphony of magnification options with 2x, 3x, or 5x increases.
3. State-of-the-Art optics for unparalleled clarity
At the core of the 11mm 82° Series Eyepiece lies a technological marvel. Designed with advanced computer technology, a fusion of low dispersion and high refractive index optical glasses, and robust enhanced multilayer deposition coatings, this eyepiece emerges as a beacon of optical excellence, delivering high contrast, resolution, and superior flat field characteristics.
4. Immersive stargazing experience
The visual allure of the 11mm 82° Series Eyepiece is unparalleled – a captivating blend of extended eye-relief and a vast 82° apparent field. This design isn't just technical; it orchestrates a full-immersion experience. Beyond comfort, it effortlessly unlocks the "averted vision" technique, revealing faint details across an extensive field-of-view, transforming each observation into a mesmerizing spectacle capturing the universe's essence.
5. Rugged durability for years of exploration
Precisely assembled into precision-machined metal lens barrels, this eyepiece ensures the perfect alignment of the optical train – a reliable companion for years of rugged field use.
6. Minimized reflections for clear views
Delving into the details of optical perfection, the 11mm 82° Series Eyepiece goes beyond clarity. With all internal surfaces of the eyepiece barrel in flat black and the edges of the lenses treated the same way, internal reflections are minimized. This deliberate step ensures astronomers are presented with an unobstructed, crystal-clear view of the cosmos, where every detail is crafted with precision.
7. Ultra-wide eyepieces for comfort & value
The Explore Scientific 82° Series extends an invitation to embrace comfort, quality, and exceptional value. Featuring an 82° apparent field of view, these eyepieces transport astronomers into a realm of generous ultra-wide fields, enhancing the stargazing journey with a level of comfort that makes prolonged observations effortless. It's not just about comfort; it's about details materializing and enriching the stargazing experience."
What's in the box?
- Explore Scientific 82° Series 11mm Waterproof Eyepiece ×1
SPECS
Explore Scientific 82° Series 11mm Waterproof Eyepiece
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Focal Length: 11mm
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Apparent field of view: 82 degrees
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Eyepiece barrel size: 1.25" / 3.18cm
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Field Stop Diameter: 15.9mm
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Eye relief: 15.6mm
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Length: 3.42" / 87mm
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Width: 1.89" / 48mm
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Weight: 9.8oz / 278g
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