TeleVue
Tele Vue 3.7 mm Ethos SX 1.25"/2" Eyepiece with Free Case
Tele Vue 3.7 mm Ethos SX 1.25"/2" Eyepiece with Free Case
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Includes a Free Eyepiece Case
Receive a free eyepiece case when you buy this 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 3.7 mm Ethos SX 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.
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. Apparent Field of View provided will be 100° or 110°, depending on the model chosen.
Tele Vue Ethos Eyepiece Specifications:
- Focal Length: 3.7 mm
- Barrel Size: 2", 1.25"
- Apparent FOV: 110°
- Eye Relief: 15 mm
- Field Stop: 7.04 mm
- Weight: 1.10 lb
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SKU Number
TLV-ETH-037 Model NumberETH-037 Standard or Speciality Eyepiece?Standard Eyepiece Barrel Size1.25"/2" Eyepiece Focal Length (mm)3mm Eyepiece SeriesTele Vue Ethos Eye Relief15 mm Apparent Field of View110º Adjustable Eye Relief?No Waterproof?No Threaded for Filters?Yes, 1.25" & 2" Field Stop (ex 8 mm, list all in kit with comma space between each)7.04 mm DimensionsHeight: 6.1" (154.94 mm), Diameter of Black Barrel: 2.2" (55.88 mm) Weight (ounces)17.6 oz
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