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Explore Scientific 100 Degree Series 25mm Argon-Purged Waterproof Eyepiece, Enhanced Multilayer Deposition Coatings, 2" Barrel

SKU: ESWP10025 MFR: EPWP10025-01
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Key Features

  • Experience stunning views with this 25mm telescope eyepiece, perfect for deep-sky observation.
  • Enjoy a super-wide 100-degree apparent field of view, making celestial navigation a breeze.
  • The Explore Scientific eyepiece boasts enhanced multilayer coatings for crisp, clear images.
  • With 16mm of eye relief, this 2" barrel eyepiece offers comfortable viewing during long sessions.
  • Argon-purged and waterproof, this eyepiece ensures peak performance in any environment.
  • Its 8-element design and premium glass deliver superior image quality with minimal distortion.
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Special Order?Estimated to Ship: 08/16/2025
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Shopper : Why Did You Choose This?MARC R : I have the others in other focal length fills a gap; great glass

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Explore Scientific 100 Degree 25mm Argon-Purged Waterproof Eyepiece, 2" Barrel Specifications

  • Focal Length

    25mm

  • Barrel Size

    2" (50.8mm)

  • Apparent Field of View

    100deg.

  • Eye Relief (Designed)

    16mm (estimated)

  • Filter Threads

    Standard 2" (M48 x 0.75) Filter Thread

  • Coatings

    EMD (Enhanced Multilayer Deposition) Coatings

  • Lens Elements

    8

  • Blackened Lens Edges

    Yes

  • Barrel Safety Recess

    Yes

  • Barrel Type

    Tapered barrel

  • Protective Plastic Storage Container

    Yes - Free Agena Eyepiece Container
    Size: Agena 85x120mm

  • Optical Design

    Combination of: Dense Crown, Light Crown, Dense Flint and Lanthanum Optical Glasses

  • End Caps

    2

  • Rubber Eye Guard

    Rubber Folding Type

  • Height (With Eyeguard Extended)

    151.4mm (5.96")

  • Maximum Width

    73.3mm (2.89")

  • Eye Lens Diameter

    33.0mm (1.30")

  • Weight

    2lbs / 907.18g

  • UPC Code

    812257013852

About Explore Scientific 100 Degree 25mm Argon-Purged Waterproof Eyepiece, 2" Barrel

What sets the Explore Scientific 100 Degree Series 25mm Argon-Purged Waterproof Eyepiece apart is its exceptional engineering, designed to elevate your astronomical observations to new heights. This high-quality eyepiece is the result of sophisticated computer-aided design, integrating a combination of low dispersion and high refractive index optical glasses. These are complemented by durable, advanced multilayer deposition coatings, ensuring high contrast, high resolution, and superior flat field characteristics that discerning astronomers seek.

Crafted for durability and reliability, this eyepiece is ruggedized and fully waterproof, ready to face the challenges of outdoor environments head-on. The innovative design offers a remarkable 100-degree apparent field of view, providing an immersive, full-immersion visual experience that must be seen to be believed. The long eye-relief further enhances comfort during extended viewing sessions, making it a top choice for serious stargazers.

The lens elements within the Explore Scientific eyepiece are meticulously cleaned and precisely aligned within its precision-machined lens barrels. Each lens and lens grouping boasts Enhanced Multilayer Deposition (EMD) Coatings and are edge-blackened to reduce light scatter and preserve image contrast. Baffles are strategically placed to mask and deflect stray light, further boosting contrast and ensuring a pristine viewing experience.

Innovatively designed for advanced performance, this eyepiece is internally sealed and argon-purged with inert, dry argon gas. This process not only prevents internal fogging but also protects against the intrusion of fine particulates and fungal growth, thereby maximizing the longevity of the internal coatings. To guarantee its waterproof integrity, each eyepiece undergoes rigorous testing, including submersion in 1 meter of water for 30 minutes.

Whether you're observing the delicate wisps of a nebula, the sprawling majesty of a galaxy, or the clustered brilliance of a star cluster, the Explore Scientific 100 Degree Series 25mm Argon-Purged Waterproof Eyepiece is an indispensable tool that promises to transform your celestial viewing experiences with its advanced, innovative, and reliable features.

Explore Scientific 100 Degree 25mm Argon-Purged Waterproof Eyepiece, 2" Barrel Features

  • 25mm Focal Length
  • 100 Degree Field of View
  • 2" Diameter Barrel
  • Fully Multicoated Optics
  • Argon-Filled, Water and Fogproof
  • Slip-Resistant Textured Surface
  • Easy-Insertion Double-Tapered Barrel
  • Fold-Down Eyecup

Key Features

  • Experience stunning views with this 25mm telescope eyepiece, perfect for deep-sky observation.
  • Enjoy a super-wide 100-degree apparent field of view, making celestial navigation a breeze.
  • The Explore Scientific eyepiece boasts enhanced multilayer coatings for crisp, clear images.
  • With 16mm of eye relief, this 2" barrel eyepiece offers comfortable viewing during long sessions.
  • Argon-purged and waterproof, this eyepiece ensures peak performance in any environment.
  • Its 8-element design and premium glass deliver superior image quality with minimal distortion.

What's in the box:

  • Explore Scientific 100 Degree 25mm Argon-Purged Waterproof Eyepiece
  • 2" Barrel
  • Explore Scientific 1 Year Warranty (Extendable to Lifetime Warranty with Registration)