Tele Vue

Tele Vue 3.7mm Ethos-SX 1.25" with 110 Degree Apparent Field of View, with 2" Eyepiece Adapter

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About the Tele Vue 3.7mm Ethos-SX 1.25""

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"" Specifications

Focal Length 3.7mm
Barrel Size 2" & 1-1/4"
Apparent Field of View 110 deg
Eye Relief 15mm
Field Stop 7.04mm
Weight 1.10lbs / 17.6oz
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