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Tele Vue Ethos 17mm Ultra Wide Angle Eyepiece (2")

B&H # TEEP17E Mfr # ETH-17.0
In Stock
Free Expedited Shipping
You Pay: $699.95
Product Highlights
  • 100° Apparent Field of View
  • 15mm Eye Relief

The 17mm Ethos Eyepiece is part of Tele Vue's Ethos collection, the first astronomical eyepieces with 100° apparent fields of view.  

A 100° apparent field of view is a truly astounding number by any astronomical standard.  Given that your 'mind's eye' can concentrate upon approximately 50° of a viewing field at once, doubling that amount results in a view that you could feel like you're "just falling into".  For any given magnification, an Ethos will show a whopping 50% more sky than the previous widest oculars.  Sharpness is inherent to the Ethos' optical design, and contrast is maximized through intelligent use of flat baffle finishes and ultra low reflectivity, high-efficiency coatings tuned to the composition of each element.

The Ethos does the job of many eyepieces, delivering the true field sizes of longer focal length, narrower apparent field eyepieces with the benefits of higher power and darker sky backgrounds.

The 17mm Ethos fits 2" focusers/diagonals.  Though it has a respectable 15mm of eye relief, it accepts Tele Vue's DIOPTRIX eyepiece astigmatism correctors so that even astigmatic viewers can observe without having to use their glasses.

Accepts DIOPTRIX astigmatism correcting lenses so astigmatic users can enjoy sharp viewing without their glasses
Can be combined with Barlows and Powermates for higher magnifications without vignetting
Accepts 48mm filters
Focal Length 17mm
Eye Relief 15mm
Apparent Field of View 100°
Dimensions Not Specified by Manufacturer
Weight 1.55 lbs (704g)
Tele Vue Ethos 17mm Ultra Wide Angle Eyepiece (2")
  • Front & Rear Lenscaps
  • 5-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Tele VueEthos 17mm Ultra Wide Angle Eyepiece (2")
     
    5.0

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

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    Reviewed by 2 customers

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    5.0

    Awesome!!

    By Mike

    from Layton, UT

    Verified Buyer

    Pros

    • Great Optics

    Cons

      Best Uses

        Comments about Tele Vue Ethos 17mm Ultra Wide Angle Eyepiece (2"):

        Awesome spacewalk feel!! Moon is awesome with this in my 8"SCT.

        Share this review

        (0 of 1 customers found this review helpful)

         
        5.0

        Ethos!!

        By Scoperanious

        from Boston, MA

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Quality Lenses

        Cons

          Best Uses

          • Astronomy

          Comments about Tele Vue Ethos 17mm Ultra Wide Angle Eyepiece (2"):

          No comparison. Perfect for my C9.25 SCT.

          Share this review

          Cleaning & Anti-Fog

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          Barlow Lenses

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          • You Pay: $10.05
           
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