Tele Vue 3.7mm Ethos-SX 1.25" with 110 Degree Apparent Field of View, with 2" Eyepiece Adapter
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Tele Vue 3.7mm Ethos-SX 1.25" with 110 Degree Apparent Field of View, with 2" Eyepiece Adapter Overview
With 110 deg., the Ethos-SX has 21% more AFOV area than the 100 deg. Ethos design. This permits 62% power increase from a 6mm Ethos, while retaining 68% of its TFOV. The 3.7mm actually has more TFOV than Tele Vue's 8mm Plossl, 6mm Radian and 5mm Nagler Type-6! In 1-1/4" mode, it is parfocal with the wide range of 1-1/4" Tele Vue Plossls, Panoptics, Radians, Naglers, Nagler Zooms and 6mm and 8mm Ethos eyepieces. The screw-on 2" adapter (included) is designed to make it parfocal with 13mm and 10mm Ethos when they are used in their 2" modes.
Tele Vue 3.7mm Ethos-SX 1.25" with 110 Degree Apparent Field of View, with 2" Eyepiece Adapter Feature
- Staggering 110 degrees ultra wide angle apparent field of view opens up the night sky
- Eyepiece with 1.25" body, includes threaded 2" adapter for use in 2" telescope focusers
- Weighs 1.10 lbs
- Scan the skies like never before with the 110 degrees 3.7mm Ethos-SX
- Threaded for use with 1.25" eyepiece filters
