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Explore Scientific 2" 100° Series Argon-Purged Waterproof Eyepiece - 25mm

5.0 (1 Reviews) Read Reviews Write Review
Brand Explore Scientific
Part Number EPWP10025-01
Availability available

Product Info

Manufacturer Description

Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 100° Series hyper-wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. And yes, they are indeed ruggedized and waterproof to withstand the outdoor environment.

The visual effect of these eyepieces with their long eye-relief and their 100° apparent field is an extreme full-immersion experience. You have to try it understand the visual impact that these eyepieces produce.

Like all Explore Scientific eyepieces, the lens elements of the 100° eyepiece are meticulously cleaned and aligned before being installed in their precision machined lens barrels.

Each lens and lens grouping have EMD (Enhanced Multilayer Deposition) Coatings and are edge-blackened to eliminate light scatter and maintain image contrast. Contrast is further enhanced with baffles that mask and deflect unwanted stray light.

Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximize the life of the internal coatings. To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.

Explore Scientific's eyepieces are backed with their exclusive Explore STAR Transferrable Extended Life of the Product Warranty. Limited Warranty is one year, which converts to the Explore STAR Transferrable Extended Life of the Product Warranty when product is registered within 60 days of purchase. We think that you will find Explore Scientific eyepieces rank among the finest obtainable and represent an outstanding value.


5.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      User Notes:
      Review by Nate of Page, AZ.
      Jun 16, 2015

      5.0 Super EP


      Quality Lenses,Strong Construction



      I have every 68 - 82 & 100 degree EP that ES makes , all are very very good Eps. In my 11" Edge SCT the ES 25mm 100 is 5 Stars + in my Scope this EP is a work of art. Views are breathtaking, and I'm very happy with this EP .

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Apparent Field of View 100°
      Barrel Size 2" (50.8mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 85x120mm
      Coatings EMD (Enhanced Multilayer Deposition) Coatings
      Design Combination of: Dense Crown, Light Crown, Dense Flint, and Lanthanum Optical Glasses
      Height (with Eye Guard) 151.4mm (5.96")
      Max Width 73.3mm (2.89")
      End Caps 2
      Eye Lens Diameter 33.0mm (1.30")
      Eye Relief by Design 16mm (estimated)
      Filter Threads Standard 2" Filter Thread (M48 x 0.75)
      Focal Length 25mm
      Lens Elements 8
      Rubber Eye Guard Rubber Folding Type
      Blackened Lens Edges Yes
      Additional Information Body: Anodized Black Aluminum; Laser-Etched Description and Serial Number; Rubber Grip: Internally O-Ring Sealed and ArgonPurged

      Barrel: Stainless-Steel, Double Taper, Accepts Standard Filters
      Manufacturer Explore Scientific
      Eyepiece Focal Length 20.1mm - 30mm
      Eyepiece Field of View Over 80 degrees
      Eyepiece Series Explore Scientific 100°
      Barrel Type Tapered barrel
      Eyepiece Weight 41.60oz (1,179.34g)