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Explore Scientific 52° Series 15mm Waterproof Eyepiece

SKU EPWP5215-01
Original price $0.00 - Original price $0.00
Original price $0.00
$119.99 - $119.99
Current price $119.99
In stock

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Explore Scientific 52 Degree Series 15mm Waterproof Eyepiece - EPWP5215-01

Discover the Explore Scientific 52° Series 15mm Waterproof Eyepiece.

Positioned in the mid-magnification range, it's a dependable choice for visual astronomers.

Particularly suited for deep sky enthusiasts, this focal length provides a substantial boost in magnification and enhances contrast, revealing galaxies and nebulae in their full glory, even under suburban skies.

The 52° Series features multi-element optics with a flat field, elevating your visual astronomy experience. A blend of comfort, quality, and value.

With a generous 52-degree apparent field of view, these eyepieces deliver outstanding value for their price range, ensuring exceptional quality and performance when compared to similarly priced Plossl eyepieces.

One notable advantage of these eyepieces is their ability to enhance contrast and ease of observation when you slightly divert your gaze from the object, a technique known as averted vision.

This technique proves invaluable when observing faint celestial objects, as it directs the image to a more light-sensitive part of your eye, enabling you to detect even the faintest details.



  • 52° Apparent Field of View: Immerse yourself in a vast 52-degree apparent field of view. This expansive perspective enables you to take in more of the celestial canvas at a single glance, offering an immersive experience in observing celestial objects.
  • 15mm Focal Length: Balancing versatility and detail, the 15mm focal length provides an optimal magnification level for a wide array of astronomical observations. It offers a comfortable view of extended objects like star clusters and galaxies, while still delivering intricate views of planets and lunar features.
  • EMD (Enhanced Multi-Layer Deposition): The Explore Scientific 52° Series Eyepiece is enhanced with EMD coatings, signifying Enhanced Multi-Layer Deposition. This specialized coating process heightens light transmission and diminishes internal reflections. The outcome? Expect crisper, higher contrast images with enhanced color accuracy.
  • Waterproof - O-Ring Sealed Argon Gas Purged: Engineered to brave the elements, this eyepiece boasts a waterproof design. It's fortified with O-ring seals that form a secure, moisture-resistant barrier, preventing water, dust, and debris from entering. Additionally, it's charged with argon gas, further fortifying it against internal fogging and moisture-related damage.
  • Rigorous Water Testing: Rigorously assessed for waterproof proficiency, this eyepiece endured a 30-minute submersion under one meter of water without any performance degradation. This certifies its suitability for diverse weather conditions, including damp or rainy environments.
  • Removable Flip-Down Style Soft Silicone Rubber Eyecup: The eyepiece comes with a removable flip-down style soft silicone rubber eyecup. This eyecup provides comfort and helps to block out stray light, enhancing the viewing experience. Additionally, the removable design allows for customization based on the observer's preferences.
  • Edge Blackened: The eyepiece showcases edge-blackened optics, a process involving the darkening of lens edges to curtail internal reflections and heighten contrast. This refinement minimizes stray light, elevating overall image quality, especially in scenarios with stark contrasts between bright and dark areas.
  • High-Quality Optics: Crafted with exacting precision, this eyepiece hosts top-tier optics designed to render superlative views of celestial objects. The lenses meet stringent standards, their optical surfaces polished to diminish aberrations and optimize light transmission.
  • Durable Construction: Purpose-built for resilience, this eyepiece embodies robust construction that endures the rigors of outdoor use. Its sturdiness ensures it can withstand transportation, handling, and exposure to diverse environmental conditions, all without compromising its optical prowess.
  • Threaded Barrels for Filters: Equipped with threaded barrels, this eyepiece allows users to affix standard astronomical filters. This functionality customizes your viewing experience, enabling the enhancement of specific colors or the reduction of light pollution, in accordance with the observer's preferences and target object.
  • Comfortable Eye Relief: Offering comfortable eye relief, this eyepiece enables extended periods of observation without inducing eye strain. This feature is especially valuable for eyeglass wearers, ensuring they can maintain a full field of view without the need to remove their glasses.
  • Included Accessories: The accessory ensemble accompanying the Explore Scientific 52° Series 15mm Waterproof Eyepiece includes protective eyepiece caps, comfortable soft silicone rubber eyecups, a secure eyepiece pouch/case for storage, and is complemented by a limited 1-year warranty, ensuring heightened peace of mind for users.


                                                                  Explore Scientific 52° Series Eyepieces Highlight Video:

                                                                  What's Included:

                                                                  ✓ Explore Scientific 52° Series 15mm Waterproof Eyepiece

                                                                  ✓ Eyepiece Caps

                                                                  ✓ Soft Silicone Rubber Eyecups

                                                                  ✓ Eyepiece Pouch/Case

                                                                  ✓ Limited 1 year warranty



                                                                  Item Number  EPWP5215-01
                                                                  Focal Length  15mm
                                                                  Size  (L) 93mm x (W) 43mm
                                                                  Weight  206 g/7.3 oz
                                                                  Barrel Size  1.25" (31.7mm) / Tapered barrel
                                                                  Eye Relief  16.3mm
                                                                  Field Stop Diameter  15.5mm
                                                                  Coatings  EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
                                                                  Lens Elements/ Groups  6 in 3 groups
                                                                  Filter Thread  Standard 1.25" Filter Thread (M28.5 x 0.6)
                                                                  Waterproof  O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
                                                                  Eyecup  Removable Flip-Down Style Soft Silicone Rubber
                                                                  Lens Caps  Slide-on Top and Bottom
                                                                  Materials  Optical Glass; Aluminum; Steel; Silicone Rubber
                                                                  Markings  Laser Engraved: Focal Length; Series; Serial Number; Brand

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