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Orion Telescopes

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4.5mm Tele Vue Delos Telescope Eyepiece
$329.99
 
Accepted Payment
In Stock
  • The 4.5mm Tele Vue Delos telescope eyepiece provides contrasty higher-power views
  • The Delos design achieves full field sharpness, virtually perfect theta distortion mapping and color neutrality
  • Image fidelity is maximized utilizing glass-matched multi-coatings and anti-reflection surfaces throughout the eyepiece
  • An adjustable-height eyeguard allows for positioning the soft rubber eyeguard at the ideal height to suit the observers preference. The eyeguard can also rotate for Dioptrix users.
  • 20mm eye relief, 72° FOV, limited lifetime warranty


Learn more
Item #  08302
Mfg Model #  EDL-04.5

This 4.5mm Delos telescope eyepiece by Tele Vue will provide exceptionally clear, high-magnification views of the cosmos. The 4.5mm model, like all Delos eyepieces, offers a long 20mm eye relief for comfortable views even while wearing eyeglasses. Not only is this a relatively high-power telescope eyepiece, but it provides a wide, 72° field of view for immersive observations. 

The Tele Vue Delos eyepiece design was conceived as a narrower field alternative to Ethos eyepieces. 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 theta distortion mapping, and color neutrality. Image fidelity is maximized utilizing glass matched multi-coatings 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, they prevent stray light from reflecting off the first surface and prevent extraneous light from entering your eye to pay 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 observers preference. Indicator marks on the eyepiece body are handy reference guides for setting your perfect position. The eye-guard can also rotate for Dioptrix users.
 

Warranty

This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

  • Design
    Ultrawide
  • Eyepiece focal length
    4.5mm
  • Barrel size
    1.25"
  • Apparent field of view
    72.0°
  • Eye relief
    20.0mm
  • Coatings
    Fully multi-coated
  • Filter threads
    Yes
  • Parfocal
    Yes
  • Field stop diameter
    5.6mm
  • Barrel security recess
    Yes
  • Blackened lens edges
    Yes
  • Rubber eyeguards
    Yes
  • Body material
    Aluminum
  • Case
    No
  • Weight (oz.)
    18
  • Warranty
    Limited lifetime

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