Tele Vue Delos 8mm Eyepiece


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SKU: EDL-080

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    Tele Vue Delos 8mm Eyepiece

    Tele Vue’s Delos 8mm eyepiece provides mid power perfection, retaining a generous 20mm eye-relief and a 72° apparent field of view. Outstanding in any telescope!

    Tele Vue’s Delos 8mm is a short to mid focal length eyepiece that will deliver useful magnification in almost any telescope. With a generous 20mm eye-relief and wide 72° apparent field of view the views will astound. Wide fields of view in telescopes with short to medium focal lengths (almost 1° in 600mm focal length telescopes). Mid to high powered views without the need for a Barlows or Powermate in Cassegrain telescopes! The Delos 8mm would be a worth investment for just about any telescope

    There is a good chance the TeleVue Delos will be seen as the ultimate combination of performance, viewing comfort and price. If you’ve been keeping a spot in your case for an affordable, premium eyepiece, you should consider a Delos – you won’t be disappointed! Lessons learned from the tremendously successful Ethos series were applied to develop this long eye-relief, 72° apparent field of view eyepiece line.

    The Delos 8mm has a standard 1.25″ barrel making it suitable for almost any telescope or even bino-viewers!

    Tele Vue Delos 8mm – Specifications

    • Model # EDL-08.8
    • Focal Length 8mm
    • Barrel Size 1.25″
    • Apparent Field of View 72°
    • Eye Relief 20mm
    • Weight 454g
    • Field Stop 9.9mm


    In 2011 Tele Vue introduced the Delos, mid-to-short focal length line of 20mm eye-relief, 72° 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° 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 θ (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.

    Awards – Delos 6mm and 10mm


    Tele Vue Delos 8mm EyepieceSky & Telescope Hot New Product for 2012 Award

    More Than Expected (Delos 6 and 10mm)
    And while the 20 mm of eye relief make them attractive for those was observe wearing eyeglasses, it was the “distinctly pleasurable” observing experience that most impressed our reviewer. When it comes to eyepiece design, The Delos seems to have hit all the sweet spots.

    — Editors. “Hot New Products for 2012”. Sky & Telescope (January 2012). p.39.

    Excerpt from ATT review of Delos 6- & 10-mm eyepieces:

    Wide-Field Eyepieces That Pack a Planetary Punch

    With the Delos, the eyepiece simply “disappears” and allows the observer to observe. I could find nothing whatsoever to complain about; the “twist and tighten” eye relief adjustment feature is the best I’ve ever seen in any eyepiece, and the optics are essentially perfect. Tele Vue somehow always finds a way to continuously improve upon their eyepieces and the Delos is certainly no exception. Bottomline: If you’re in the market for a planetary eyepiece, you owe it to yourself to consider the Tele Vue Delos.

    — Erik Wilcox. “Tele Vue Delos”. Astronomy Technology Today (Nov-Dec 2011). Full Review.

    Review of the 6mm & 10mm Delos from Astronomy Magazine, December 2011

    • Contrast was excellent – right up there with some of the best planetary eypeices I’ve ever used.
    • I searched but saw no internal reflections or scattering in either eyepiece.
    • The flat field the Delos eyepieces produce really made star fields pop. Open clusters epitomized the old standard “diamonds on velvet”. Stars on and off axis showed no sign of astigmatism.
    • Tele Vue has constructed an eyepiece that stands with the best deep-sky and planetary eyepieces on the market.
    • — Trusock, Tom. “Astronomy tests Tele Vue’s new eyepiece line”. Astronomy Magazine (December 2011). Full Review.

    Excerpts from Sky & Telescope, June 2011, review of Delos eyepieces:


    Essentially perfect optics
    “Immersive” observation experience


    I spent several nights viewing the Moon, Saturn, stars and nebulae with a variety of telescopes … .

    The Delos eyepieces are “easy to look through … . They have flat fields, delivering absolute pinpoint stars from edge to edge with no hint of color aberration. The view, especially during the daytime, is very pure with no noticeable color tint. And there wasn’t a hint of ghosts or reflections, even with the brightest stars”.

    “What caught me a bit off guard, however, was something that’s best described as the observing experience. It was distinctly pleasurable.”

    “I have the sensation of looking out of a circular window rather than into an eyepiece.”

    — di Cicco, Dennis. “Tele Vue’s New Delos Eyepieces”. Sky & Telescope (June 2011). p. 58, 59.


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