Tele Vue Ethos 13mm Ultra Wide Angle Eyepiece (1.25 & 2") TV Apparent viewing angle: 60

Apparent viewing angle: 60

Ball Size Size "B" (1" / 2

8V voltage source and level shifting to 3

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Tele Vue Ethos 13mm Ultra Wide Angle Eyepiece (1.25 & 2") TV Apparent viewing angle: 60100 Apparent Field of View 15mm Eye Relief The Tele Vue 13mm Ethos Ultra Wide Angle Eyepiece is the first astronomical eyepiece with 100 apparent field of view. For a given magnification, it shows 50% more sky than the previous widest field oculars. While sharpness is inherent to the optical design, contrast is maximized through the intelligent use of flat finished baffles and ultra low reflectance, high efficiency coatings tuned to the composition of