Tele Vue Ethos 8mm 2/1.25 inch Eyepiece

The Tele Vue Ethos 8mm eyepiece delivers an immersive 100° apparent field of view, offering breathtaking wide-angle views of celestial objects. Designed for both 1.25" and 2" focusers, this eyepiece combines exceptional optical performance with rugged construction, making it a top choice for serious astronomers.

Advantages

With its ultra-wide 100° AFOV, the Ethos 8mm provides a spacewalk experience, allowing you to observe deep-sky objects and planetary details with stunning clarity. The fully multi-coated optics and proprietary design ensure high contrast, sharpness, and minimal aberrations. Nitrogen purged and waterproof, it performs reliably in all conditions.

Suitable for

• Refractor telescopes
• Reflector telescopes
• Catadioptric telescopes
• Any telescope accepting 1.25" or 2" eyepieces

Key specifications

• Focal Length: 8mm
• Apparent Field of View: 100°
• Barrel Size: 1.25" & 2" (Dual)
• Eye Relief: 15mm
• Optical Design: Tele Vue Ethos (Proprietary Multi-Element)
• Number of Lens Elements: 8
• Number of Lens Groups: 5
• Coatings: Fully Multi-Coated (FMC)
• Field Stop Diameter: 13.9mm
• Parfocal: Nearly Parfocal with other Ethos eyepieces
• Sealing: Nitrogen Purged, Waterproof/Fogproof
• Filter Threads: Yes (for both 1.25" and 2" barrels)
• Eyeguard: Adjustable Rubber
• Barrel Material: Anodized Aluminum

Recommendations

For the ultimate wide-field experience, pair the Ethos 8mm with a high-quality telescope and a stable mount. Its 100° field is ideal for observing large nebulae, star clusters, and galaxies. The dual barrel design offers flexibility across different focusers.