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Explore Scientific  |  SKU: EPWP5225-01

Explore Scientific 52° Series 1.25" 25mm Waterproof Eyepiece

$129.99 $155.99

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 52° Series 1.25" 25mm Waterproof Eyepiece



  • 25mm Focal Length
  • 52° Apparent Field of View
  • 1.25" Diameter Barrel
  • Fully EMD Multi-Coated Optics
  • Argon-Filled, Water and Fogproof
  • Slip-Resistant Textured Surface
  • Fold-Down Eyecup


Broaden Your View of the Cosmos with a Classic Focal Length

The Explore Scientific 52° Series 1.25" 25mm Waterproof Eyepiece is revered among astronomers for its versatile performance and exceptional clarity. Occupying a sweet spot in the eyepiece spectrum, the 25mm focal length serves as an essential tool for exploring the night sky, from scanning the lunar surface to delving into deep-space wonders.

  • Universal 25mm Focal Length: Offers a perfect balance between wide-field views and magnification, making it ideal for a vast array of celestial objects.
  • Expansive 52° Apparent Field of View: Engage with the cosmos through a generous window into the universe, enhancing your observational experience with immersive vistas.
  • Premium Optical Quality: Fully EMD Multi-Coated Optics ensure brilliant light transmission, sharp contrast, and crystal-clear images, surpassing standard eyepieces in every aspect.
  • Designed for Every Observer: Argon-filled for ultimate water and fog-proof performance, complemented by a slip-resistant textured surface and fold-down eyecup for comfort and durability.

A Must-Have for Binoviewers

With its compatibility and optimal focal range, the 52° Series 25mm eyepiece excels when used with binoviewer setups, offering an unparalleled stereo view of the universe without compromising on brightness or detail.

Transformative Visual Astronomy Experience

This eyepiece isn't just about seeing; it's about discovering. By facilitating the use of averted vision, it allows observers to detect fainter objects by leveraging the more sensitive peripheral parts of the eye. This capability is invaluable for unveiling the elusive secrets of the night sky.

The Standard in Astronomical Observation

The Explore Scientific 52° Series 25mm Eyepiece stands as a testament to what visual astronomy can be when equipped with the right tools. It offers an unmatched blend of comfort, quality, and value, setting a new standard for what astronomers should expect from their equipment.

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Explore Scientific 52° Series 1.25" 25mm Waterproof Eyepiece | EPWP5225-01 | 811803030060

Explore Scientific 52° Series 1.25" 25mm Waterproof Eyepiece

$129.99 $155.99





Focal Length

25 mm

Focal Ratio


Field of View



Enhanced multi-layer deposition (EMD) coatings

Argon-purged, water and fog proof

16.4mm eye relief

18.2mm field stop diameter

Barrel Size



67.7mm length

43mm width


181.4 g | 6.4 oz.
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