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Explore Scientific 1.25" 82° Series Argon-Purged Waterproof Eyepiece - 4.7mm

4.7 (15 Reviews) Read Reviews Write Review
Brand Explore Scientific
Part Number EPWP8247-01
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 82° Series extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view.

Each eyepiece is meticulously assembled into precision machined metal lens barrels that maintain the perfect alignment of the optical train for years of rugged use in the field.The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.

To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.

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.

Reviews

4.7 (Based on 15 Reviews) 93% of reviewers recommended this product.
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    1. Guest

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      Review by james d.
      1529371287
      Jun 18, 2018

      5.0 this is a moon only

      Pros:

      Cons:

      Comments:

      this is a moon only eyepiece in my 6"evo very high magnification which is what i wanted for detailed views of the moon very nice range of eyepieces i ended up buying all the 1.25 68 and 82 degree eyepieces so i highly recommend explore scientific wide FOV range of eyepieces
      cheers
      james D

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

      This review was provided courtesy of AgenaAstro.com

    2. BillP772

      BillP772 New Member

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      Review by William P.
      1504872292
      Sep 8, 2017

      5.0 ES 4.7mm Eyepiece

      Pros:

      Cons:

      Comments:

      I used this eyepiece with an AR150 and found it to compliment the telescope with incredible detail (no filter or barlow). I viewed the moon and I am impressed with the sharp images of craters and mountains. Viewing Venus low in the sky, the planet was clear and rounded with the surrounding stars pinpoint. Switching to Orion Nebula the clouds moved across the image but the four stars in the Trapezium remained viewable enough to focus in on. As the image cleared the detail and sharpness
      was fantastic. Optics are clean and clear making it well worth having. As always with their superior service, Agena delivered quickly and with the complimentary container.

      Bottom Line: Would you recommend this item? Yes
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      This review was provided courtesy of AgenaAstro.com

    3. Guest

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      Review by Dale L.
      1493132760
      Apr 25, 2017

      5.0 ES 82* 4.7mm EP

      Pros:

      Cons:

      Comments:

      Perfect

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

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by Absentist of Russia.
      1463184000
      May 13, 2016

      5.0 Great eyepiece

      Pros:

      No

      Cons:

      No

      Comments:

      Great product! In it the first time I saw a polar cap of Mars, in a 200 mm skywatcher

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

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by cwhocares40 of Kansas City.
      1435881600
      Jul 2, 2015

      4.0 Great View

      Pros:

      Easy to Use,Lightweight,Accurate,Quality Lenses,Strong Construction,Compact

      Cons:

      Difficult To Focus

      Comments:

      I use this for deep sky viewing. Nice detail. Must have pristine conditions in order to use. Great value. Being an amateur, I am not able to tell the difference from the much more expensive ones.

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

      This review was provided courtesy of AgenaAstro.com

    6. Guest

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      Review by Hilbily of VA.
      1427760000
      Mar 30, 2015

      5.0 Great Eyepiece

      Pros:

      Easy to Use,Quality Lenses,Strong Construction

      Cons:

      Comments:

      Great Eyepiece, great price and warranty.

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

      This review was provided courtesy of AgenaAstro.com

    7. Guest

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      Review by jmkpl of Poland.
      1408147200
      Aug 15, 2014

      5.0 Great eyepiece for all telescopes

      Pros:

      Compact,Quality Lenses,Lightweight,Strong Construction,Accurate,Easy to Use

      Cons:

      Comments:

      ES 4.7 is very usefull eyepiece for the most types of telescopes also astrophotography-oriented ones, not only for Solar System observations.

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

      This review was provided courtesy of AgenaAstro.com

    8. Guest

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      Review by 114nakano of japan.
      1402704000
      Jun 13, 2014

      5.0 Very High Cost performance!

      Pros:

      Quality Lenses,Compact,Lightweight,Ar

      Cons:

      Comments:

      I purchased 2 for bino-telescope. I expect Night dew & Mold free. Very Low price and Very High Costperformance!!!

      Bottom Line: Would you recommend this item? Yes
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      This review was provided courtesy of AgenaAstro.com

    9. Guest

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      Review by WestSide45 of Seattle, WA.
      1396051200
      Mar 28, 2014

      5.0 Great high-powered eyepiece

      Pros:

      Quality Lenses,Well-built,Strong Construction

      Cons:

      Comments:

      Great eyepiece if viewing conditions are outstanding. I have had two such instances when I could use it in my 10" f4.7 Dob. Views of Jupiter and the Moon were great. Six stars in the Trapezium.

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

      This review was provided courtesy of AgenaAstro.com

    10. Skill Level
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      Review by Scanning4Comets of Canada.
      1390435200
      Jan 22, 2014

      4.0 Nice little eyepiece in a fast scope...

      Pros:

      Accurate,Strong Construction,Lightweight,Quality Lenses,Compact

      Cons:

      Very Short Eye Relief

      Comments:

      Excellent correction in a fast scope, but lacking a lot in eye relief. If short eye relief does not bother you, this eyepiece is corrected perfectly in a fast 10" F/4.7 reflector showing pin-point stars right to the edges. Clarity & transmission is good also.

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

      This review was provided courtesy of AgenaAstro.com

    11. Rdamer726

      Rdamer726 New Member

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      Review by rd726 of Indiana.
      1386374400
      Dec 6, 2013

      4.0 Very nice

      Pros:

      Accurate,Compact,Easy to Use,Quality Lenses,Strong Construction

      Cons:

      Comments:

      Seems very nice and easy to use.

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

      This review was provided courtesy of AgenaAstro.com

    12. Guest

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      Review by John of Adelaide, South Australia.
      1380412800
      Sep 28, 2013

      5.0 Fantastic quality for the price

      Pros:

      Quality Lenses,Strong Construction,Easy to Use

      Cons:

      Comments:

      I use this eyepiece all the time. My telescope is a 150mm Sky-Watcher with 750mm Focal length. I therefore need to maximise the magnification when viewing Saturn and Jupiter. This eyepiece does the job whilst maintaining a wide field of view. Beats looking through a pin hole.

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

      This review was provided courtesy of AgenaAstro.com

    13. Guest

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      Review by peeech of North Augusta, SC.
      1371945600
      Jun 22, 2013

      4.0 For the money, a good EP.

      Pros:

      Lightweight,Easy to Use,Quality Lenses

      Cons:

      Gets Little Soft At Edges

      Comments:

      I use this product for visual astronomy. Have not used it yet for imaging. For the money, this is a value item. Sure, with that FOV, it does get a little soft at the edges, but this doesn't cost $1k!!! If you're a perfectionist, buy the latter, but at what you get at the price paid, this is a good EP.

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

      This review was provided courtesy of AgenaAstro.com

    14. Guest

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      Review by Chuck of Brook Park, Ohio.
      1360368000
      Feb 8, 2013

      5.0 ES 4.7mm Eyepiece

      Pros:

      Strong Construction,Excellent value,Accurate,Easy to Use,Quality Lenses

      Cons:

      Comments:

      For my use on my 5" refractor this Explore Scientific eyepiece was excellent. Detail and contrast on Jupiter was very good at 250X. I had gone thru many other eyepieces before I found this one.

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

      This review was provided courtesy of AgenaAstro.com

    15. Guest

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      Review by Nick of Greece.
      1360368000
      Feb 8, 2013

      5.0 Excellent

      Pros:

      Accurate,Quality Lenses

      Cons:

      Comments:

      Very good eyepiece..For planets and deep sky.

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

      This review was provided courtesy of AgenaAstro.com

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      Specifications

      Apparent Field of View 82°
      Barrel Size 1.25" (31.7mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 52x80mm
      Coatings EMD (Enhanced Multilayer Deposition) Coatings
      Design 6 or 7 Elements; Combination of: Dense Crown, Light Crown, Dense Flint, and Lanthanum Optical Glasses
      End Caps 2
      Eye Relief by Design 14mm
      Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6)
      Focal Length 4.70mm
      Lens Elements 7
      Lens Groups 4
      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 Argon Purged

      Barrel: Stainless-Steel, Double Taper, Accepts Standard Filters
      Manufacturer Explore Scientific
      Eyepiece Focal Length 5mm and Under
      Eyepiece Field of View Over 80 degrees
      Eyepiece Series Explore Scientific 82°
      Barrel Type Tapered barrel
      Eyepiece Weight 7.50oz (212.62g)