Tele Vue Ethos 10mm 2/1,25 inch oculare

Wide-field eyepieces often force a compromise between immersive views and comfortable eye relief, but the Tele Vue Ethos 10mm eliminates that trade-off. It delivers a 100° apparent field with 15 mm of eye relief, allowing you to take in vast star fields without straining your eye.

Who is it for

Visual observers who demand the highest contrast and sharpness across the entire field, especially those using fast telescopes where lesser eyepieces show astigmatism and field curvature.

Main features

• 100° apparent field of view for a "spacewalk" experience
• Dual 1.25" and 2" barrel compatibility fits most focusers
• 15 mm eye relief works with eyeglasses
• Fully multi-coated, blackened lens edges for maximum contrast
• Parfocal with other Tele Vue Ethos, Delos, and Nagler eyepieces

Specifications

• Focal length: 10 mm
• Apparent field of view: 100°
• Barrel size: 1.25" and 2"
• Eye relief: 15 mm
• Field stop diameter: 11.9 mm
• Optical design: 8 elements in 5 groups
• Coatings: Fully multi-coated
• Housing material: Anodized aluminum
• Maximum diameter: 55 mm
• Overall length: 110 mm

Tips

For the sharpest views, let the eyepiece reach ambient temperature before observing, and use the foldable rubber eyecup to block stray light.