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Explore Scientific  |  SKU: EPWP6816–01

Explore Scientific 68° Series 1.25" 16mm Waterproof Eyepiece

$219.99 $263.99

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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Explore Scientific 68° Series 1.25" 16mm Waterproof Eyepiece



  • 16mm Focal Length
  • 68° Field of View
  • 1.25" Diameter Barrel
  • Fully Multi-coated Optics
  • Argon-Filled, Water and Fogproof
  • Slip-Resistant Textured Surface
  • Fold-Down Eyecup


Dive into the Cosmos with Enhanced Clarity and Comfort

The Explore Scientific 68° Series 1.25" 16mm Waterproof Eyepiece is engineered for astronomers who demand precision, wide fields of view, and enduring comfort. This eyepiece combines advanced optical design with user-friendly features, creating a viewing experience that is both immersive and detailed.

  • Optimized 16mm Focal Length: Ideal for a wide range of celestial observations, from detailed lunar craters to expansive nebulae, offering a versatile viewing experience.
  • Expansive 68° Field of View: Embrace the cosmos with a wide-angle perspective that brings the universe to your eyes, allowing for extensive exploration without the need for constant adjustments.
  • Superior Optical Performance: Equipped with fully multi-coated optics, low dispersion, and high refractive index glass, this eyepiece delivers exceptional contrast, resolution, and a flat field of view.
  • Comfort and Durability Integrated: Featuring a long eye relief and a fold-down eyecup for enhanced viewing comfort, alongside an argon-filled, waterproof, and fogproof construction for unparalleled durability.

State-of-the-Art Construction for Lasting Clarity

Explore Scientific's commitment to excellence is evident in the 68° Series Eyepiece's sophisticated design. The argon-purged body ensures protection against internal fogging and contaminants, such as fungus, guaranteeing the optics remain pristine over time. The choice of argon over nitrogen provides superior preservation of the eyepiece's internal elements, thanks to argon's larger atomic volume and greater inertness.

Designed for the Observational Enthusiast

Whether braving the elements for a night of stargazing or conducting detailed planetary studies, this eyepiece is built to perform. Its waterproof construction makes cleaning hassle-free, and the rigorous testing process, including submersion in water, ensures each eyepiece is sealed perfectly.

Your Portal to the Universe

The Explore Scientific 68° Series 16mm Eyepiece transcends standard viewing equipment, offering a gateway to the wonders of the night sky. It's more than just an eyepiece—it's an invitation to engage with the cosmos on a profound level, making every observation an adventure.

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Explore Scientific 68° Series 1.25" 16mm Waterproof Eyepiece | EPWP6816–01 | 812257010547

Explore Scientific 68° Series 1.25" 16mm Waterproof Eyepiece

$219.99 $263.99





Focal Length

16 mm

Focal Ratio


Field of View



Enhanced multi-layer deposition (EMD) coatings

Argon-purged, water and fog proof

11.9mm eye relief

18.2mm field stop diameter

Barrel Size



61.9mm length

43.2mm width


158 g | 5.5 oz
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