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Explore Scientific 68° Series 16mm Waterproof Eyepiece

SKU EPWP6816-01
Original price $0.00 - Original price $0.00
Original price $0.00
$219.99 - $219.99
Current price $219.99
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

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Estimated Delivery Time: 3-7 Business Days

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We offer free U.S. shipping to the lower 48 States - on most orders over $150 USD. Some limitations apply.

Shipping fees will apply on most orders shipping across Canada, with some exceptions.

We offer a 30 Day Return Policy on most of the products that we carry.

For full details on our Shipping & Returns Policy, please click here.


The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

To view the Warranty details for each brand that we sell, including products that do not qualify for Warranty, please visit here.

Explore Scientific 68 Degree Series 16mm Waterproof Eyepiece - EPWP6816-01

Discover the Explore Scientific 68° Series 16mm Waterproof Eyepiece – a marvel of precision engineering.

Crafted with cutting-edge computer design, a blend of low dispersion and high refractive index optical glass, and fortified with durable multilayer deposition coatings, these eyepieces are built for excellence.

Experience the universe in astonishing detail, thanks to their capacity for high contrast, exceptional resolution, and an impeccably flat field.

Immerse yourself in celestial wonders with their extensive 68° apparent field and generous eye relief.

They maintain focus consistently across various focal lengths, making your observing sessions seamless.

Plus, enjoy enhanced comfort with a removable, foldable soft silicone rubber eyecup.

But that's not all. Our eyepieces are Argon-purged, safeguarding their internal elements from the harsh outdoor elements.

Argon's larger atomic size ensures a superior seal, minimizing the risk of leaks over time. Its inert nature protects eyepiece components, extending their lifespan.

Explore Scientific 62° Series Waterproof Eyepiece

Additionally, Argon's reduced heat conductivity buffers against rapid temperature changes, ensuring stable optical performance.

Say goodbye to fogging and contaminants; our waterproof eyepiece creates a sealed, dry environment.

Cleaning is effortless, with no risk of cleaning solution creeping between lens elements. Rest assured in their reliability – each eyepiece undergoes rigorous testing in one meter of water for 30 minutes to guarantee a perfect seal.

Unlock new horizons and explore with clarity, comfort, and confidence.



  • 68° Field of View: This eyepiece offers a broad, immersive window to the celestial realm. Its wide perspective is especially advantageous for studying sizable cosmic entities and capturing sweeping panoramas of the astral scenery. This generous field of view ensures you won't miss any of the spectacular details the night sky has to offer.

  • 16mm Focal Length for Versatility: The eyepiece's precisely calibrated 16mm focal length opens up a world of versatility, making it an ideal choice for observing a wide array of celestial objects and engaging in various astronomical pursuits.
  • Cutting-Edge Optical Design for Precision Viewing: Meticulously engineered through advanced computer design techniques, the eyepiece seamlessly combines low dispersion and high refractive index optical glasses. This results in breathtaking image quality, virtually eliminating chromatic aberration and significantly enhancing color accuracy, even in the most challenging lighting conditions.
  • Robust Multilayer Coatings for Ultimate Clarity: Engineered with resilient multilayer deposition coatings, this eyepiece maximizes light transmission while minimizing internal reflections. The result? Crystal clear, high-contrast views of celestial wonders, allowing you to delve deeper into the mysteries of the universe.
  • Argon-Sealed Reliability for Uncompromised Views: By employing Argon-purging technology, this eyepiece establishes an airtight fortress, shielding its internal components from the unpredictable elements of the environment. Fog-free and moisture-resistant, it ensures your views remain unobstructed, even in humid or damp conditions.
  • Expansive 68° Field of View for Immersive Exploration: With an expansive 68° apparent field of view, this eyepiece provides a panoramic window to the cosmos. Ideal for capturing breathtaking vistas of large celestial objects and offering an immersive stargazing experience like no other.
  • Exceptional Contrast and Resolution for Detail-Oriented Observations: Purposefully fine-tuned, this eyepiece unveils exceptional contrast and resolution, allowing you to discern intricate features on the lunar surface, planets, and deep-sky phenomena with remarkable clarity.
  • Precision Flat Field for Stellar Pinpoint Accuracy: Crafted for precision, the eyepiece maintains an impeccably flat field, ensuring stars appear sharp and pinpoint across the entire view. This feature is invaluable for astrophotography and meticulous visual observations.
  • Generous Eye Relief for Extended Comfort: With generous eye relief, this eyepiece promotes comfortable viewing during extended observation sessions. Particularly advantageous for eyeglass wearers, it minimizes eye strain, enabling hours of uninterrupted stargazing.
  • Parfocal Design for Seamless Transitioning: The eyepiece's parfocal design ensures consistent focus across various focal lengths. This means you can effortlessly switch between different eyepieces without the need for frequent refocusing, streamlining your observing experience.
  • Comfortable Silicone Eyecup for Prolonged Observing Pleasure: Featuring a removable, foldable soft silicone rubber eyecup, this eyepiece takes comfort to a new level during extended observation sessions. It creates a cushioned interface between your eye and the eyepiece, significantly reducing observer fatigue.
  • Argon's Protective Seal for Longevity and Reliability: Thanks to Argon gas, larger than Nitrogen atoms, this eyepiece provides a secure seal that minimizes the risk of leakage over time. Its inert nature also shields eyepiece components, significantly extending their lifespan.
  • Temperature Resilience for Consistent Performance: Argon's low thermal conductivity ensures that heat absorption occurs gradually, effectively buffering against rapid temperature changes. This feature guarantees stable optical performance, even in environments with varying temperatures.
  • Stringent Waterproof Testing for Your Peace of Mind: Each eyepiece undergoes rigorous testing, being submerged in one meter of water for a full 30 minutes. This meticulous process guarantees an impeccable seal, providing you with the utmost confidence in its waterproof capabilities for your celestial expeditions.
  • Included Accessories: The accessory kit accompanying the Explore Scientific 68° Series 16mm Waterproof Eyepiece features protective eyepiece caps, comfortable soft silicone rubber eyecups, a secure storage eyepiece pouch/case, and includes a limited 1-year warranty, providing additional peace of mind.


                                                          What's Included:

                                                          ✓ Explore Scientific 68° Series 16mm Waterproof Eyepiece

                                                          ✓ Eyepiece Caps

                                                          ✓ Soft Silicone Rubber Eyecups

                                                          ✓ Eyepiece Pouch/Case

                                                          ✓ Limited 1 year warranty


                                                          Item Number  EPWP6816–01
                                                          Focal Length  16mm
                                                          Length  61.9mm
                                                          Width  43.2mm
                                                          Weight  5.5oz; 158g
                                                          Barrel Size  1.25"
                                                          Eye Relief  11.9mm
                                                          Field Stop Diameter  18.2mm

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