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Tele Vue 8 mm Ethos 1.25"/2" Eyepiece with Free Case - ETH-080
Includes a Free Eyepiece Case
Receive a free eyepiece case when you buy this Hyperion eyepiece from High Point Scientific! You will love the way the two piece “bolt-style” case threads together to securely protect your new eyepiece from dust, moisture, and scratches during storage.
Tele Vue 8 mm Ethos 1.25"/2" Eyepiece
The concept for this eyepiece series was proposed by Tele Vue President David Nagler, with performance parameters giving it the fundamental characteristics (the ethos) of a Tele Vue eyepiece: high contrast, comfortable eye relief and full field sharpness. Control of astigmatism, field curvature, lateral color, angular magnification distortion correction, and low pupil sensitivity for daytime use were specified criteria.
In 1.25" mode, if you use Tele Vue's "high-hat" 2"-1.25" adapter, this 8 mm Ethos will be parfocal with Tele Vue's Plössls, Radians, Type 6 Naglers, Nagler Zooms, 1.25" Panoptics and 6 mm Ethos. Further, its light weight and small diameter makes the 8 mm suitable for anyone using a binocular viewer. Another application is for spotting scope set-ups with the Tele Vue 60° 1.25" diagonal.
Following Tele Vue's philosophy of pushing the state of the art, long-time Tele Vue employee and optical design protégé Paul Dellechiaie took up the challenge and designed the basic eyepiece form. Under Al's guidance, Paul tweaked his design to fulfill the original goals. Sharp images are inherent to the optical design, but contrast is maximized through the intelligent use of flat finished baffles and ultra low reflectance, high efficiency coatings tuned to the composition of each element.
Tele Vue Ethos Eyepiece Specifications:
- Focal Length: 8 mm
- Barrel Size: 2", 1.25"
- Apparent FOV: 100°
- Eye Relief: 15 mm
- Field Stop: 13.9 mm
- Weight: 0.95 lb