|TeleVue 3.5mm Delos Eyepiece - 1.25" [EDL-03.5]|
About the Tele Vue 3.5mm Delos Eyepiece - 1.25"
Tele Vue is pleased to introduce the TeleVue Delos Eyepiece, a 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 TeleVue Delos Eyepiece was conceived as a narrower field Ethos. Reducing the field to 72 degrees 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 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 TeleVue Delos Eyepiece 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.
The TeleVue Delos Eyepiece finally brings to us the culmination of the efforts of Paul Dellachaie at Televue in producing Optics that will give excellent contrast and eyerelief at the same time. You simply cannot beat it for high quality, and good value for the money. Who else but Televue'''s Al Nagler and Paul Dellachaie could produce such a winner??
"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
TeleVue 3.5mm Delos Eyepiece - 1.25" Features...
TeleVue 3.5mm Delos Eyepiece - 1.25" Specifications...
Focal Length: 3.5mm
Apparent Field Of View: 72 degree
Eye Relief: 20mm
Effective Field Stop: 4.4
Weight: 1.10 / 17.6
Warranty: Limited Lifetime
Tele Vue Product Number: EDL-03.5
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