Tele Vue 17mm Ethos 2 Eyepiece - Premium Telescope Eyepiece for Astronomy & Stargazing - Perfect for Deep Space Observation & Astrophotography

The Televue 17mm Ethos Eyepiece provides a 100° apparent field for a true "spacewalk" view of the night sky. Distortion correction, high contrast and on-axis sharpness for wide field planetary viewing. Televue 17mm Ethos Eyepiece provides a generous 15mm of eye relief for comfortable observing. Accepts DIOPTRX eyesight astigmatism correctors. The Televue 17mm Ethos Eyepiece is a 2" barrel size and weighs 1.55 lbs (24.8 oz.). Dramatic mid-level magnification views combine with stunning wide field backgrounds.

Specifications

• Apparent Field: 100 deg
• Focal Length: 17mm
• Effective Field Stop: 29.6
• Eye Relief: 15mm (accepts DIOPTRX eyesight astigmatism corrector)
• Barrel Size: 2"
• Weight: 1.55 lbs./24.8 oz.