Ethos-SX 4.7mm 110° Eyepiece
Ethos-SX 4.7mm 110° Eyepiece

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Tele Vue

Ethos-SX 4.7mm 110° Eyepiece

Regular price
$ 628.00
Sale price
$ 628.00
Unit price
per 
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Description

TeleVue founder, Al Nagler, eagerly pushed Ethos designer Paul Dellechiaie to extend the new 3.7mm focal length to reach 110°, the same field size as the LEM Simulator optics Al designed 45-years ago to train NASA astronauts for lunar landings.

The new 4.7mm Ethos-SX, like its 3.7mm progenitor, is designed and crafted to combine its exceedingly wide field of view with all the contrast, color-rendition, distortion correction and center-to-edge sharpness needed to achieve that natural view.

Compared to a lower power eyepiece with the equivalent TFOV (similar field stop) such as an 11mm Plössl (9.1mm field stop), the greater power - for higher resolution, and smaller exit pupil (for a darker background to enhance contrast) reveals a deep sky experience "even better than you imagined".

The 4.7mm is a 1¼" format and is parfocal with the wide range of 1¼" Tele Vue eyepieces. 2" adapter included.

Specifications

4.7-mm
Model # ETH-04.7
Focal Length (mm) 4.7
Barrel Size (in.) 2" & 1¼"
Apparent Field of View (deg.) 110
Eye Relief (mm) 15
Weight (lb / oz) 1.30 / 20.8
Field Stop (mm) 8.94

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