Tele Vue 17.3mm Delos Eyepiece

ITEM #
TE-EDL-17.3
  • Sale
  • Regular price $339.01
  • Tele Vue 17.3mm Delos Eyepiece

    • Sale
    • Regular price $339.01
    • ITEM #
      TE-EDL-17.3


    3

    Features

    Tele Vue 17.3mm Delos Eyepiece

    Tele Vue Delos Eyepieces

    "It was natural to take lessons learned from the tremendously successful Ethos project and apply it going forward. In the fall of 2008, Paul Dellechiaie was tasked to investigate a long eye-relief eyepiece design in the 70 degree AFOV range, retaining the key performance goals met with Ethos. My father named Paul's design, "Delos." Delos is a beautiful Greek island which happens to be the mythical birthplace of Apollo, god of light. More importantly the name was chosen to give recognition to Paul, principal designer of both Delos and Ethos."  David Nagler

    Tele Vue is pleased to introduce the Delos, mid-to-short focal length line of 20mm eye-relief, 72 degree apparent field of view eyepieces. Every optical, mechanical, and ergonomic aspect was rethought to achieve reference-standard performance for any visual application.

    The Delos was conceived as a narrower field Ethos. Reducing the field to 72 degree allowed freedom to increase eye-relief, while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect f degree (theta) distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece.

    Contrast is further enhanced with a new, continuously adjustable height eyeguard system that can be locked in any position. Since the Delos eye-lens measures a quite large 35mm in diameter, preventing stray light from reflecting off the first surface and extraneous light from entering your eye pays off in a nice increase in perceived contrast. The eyeguard's sliding action allows for positioning the soft rubber eyeguard at the ideal height to suit the observer's preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrx users.

    OPT Product Number: TE-EDL-17.3

     

    Additional Information

    Case IncludedNo
    ConditionNew
    Dust Caps IncludedYes
    Eye Guard IncludedYes
    Eye Relief19mm & Up
    Eyepiece Apparent FOV72 degrees
    Eyepiece Eye Relief20mm
    Field Stop21.2mm
    Focal Length17.3mm
    Lens Elements & GroupsInfo
    ManufacturerTele Vue
    ModelTelevue Delos
    Optical DesignDelos
    Size1.25"
    WarrantyLifetime Warranty

    Questions & Answers

    Have a Question?

    Be the first to ask a question about this.

    Ask a Question

    Make easy monthly payments over 3, 6, or 12 months

    Rates from 10–30% APR.

    Quick and easy

    Enter a few pieces of information for a real-time decision. Checking your eligibility won't affect your credit score.

    No hidden fees

    Know up front exactly what you'll owe, with no hidden costs and no surprises.

    Just select Affirm at checkout.