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Explore Scientific 2" 68° Series Argon-Purged Waterproof Eyepiece - 40mm (NO BOX)

4.0 (1 Reviews) Read Reviews Write Review
Brand Explore Scientific
Part Number EPWP6840-01

Product Info

Manufacturer Description

A number of Explore Scientific's eyepieces are packed in heavy, oversized boxes. These end up significantly increasing shipping costs, especially for international customers. A few eyepieces, such as this one, weigh over 4 lbs when shipped, with the result that we cannot use the cheaper First Class shipping method for international shipments.

Due to requests from several international customers, we are now offering some of these eyepieces WITHOUT the original box. The eyepiece will be shipped in the protective plastic bolt case that we include with this eyepiece. With this, the shipped weight is significantly reduced and you can now opt for First Class shipping during checkout (or slightly cheaper Priority or Express Mail shipping). These eyepieces are brand new with full manufacturer's US warranty - you just won't get the original cardboard box if you buy this item.

For all item details, please see the main page for this product at this link.


4.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by litebkt of Mariposa, CA.
      Jan 6, 2011

      4.0 It's pretty much the only choice.


      Strong Construction,Compact



      This is pretty much the only choice for reticle eyepieces and for finder scopes. And it is only available here. I did purchase another brand a while back that had a flashing feature but it was big, bulky, and broke after first use.

      It would be nice for these things to turn off automatically after a few hours of non use. I just can't seem to remember to turn them off and I'm always replacing batteries.

      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 68°
      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 6 Elements; Combination of: Dense Crown, Light Crown, Dense Flint, and Lanthanum Optical Glasses
      End Caps 2
      Eye Relief by Design 31mm
      Filter Threads Standard 2" Filter Thread (M48 x 0.75)
      Focal Length 40mm
      Lens Elements 6
      Lens Groups 4
      Parfocal Yes
      Rubber Eye Guard Rubber Folding Type
      Eyepiece Weight 35oz (992.23g)
      Blackened Lens Edges Yes
      Additional Information Body: Anodized Black Aluminum; Laser-Etched Description and Serial Number; Rubber Grip: Internally O-Ring Sealed and Argon Purged

      Barrel: Stainless-Steel, Double Taper, Accepts Standard Filters
      Manufacturer Explore Scientific
      Eyepiece Focal Length 30.1mm - 40mm
      Eyepiece Field of View 61 - 70 degrees
      Eyepiece Series Explore Scientific 68°