Celestron Ultima Edge Eyepiece - 1.25" 18mm

• Precision Engineered Optics: 18mm parfocal Ultra Flat Field eyepiece, specifically designed for 1.25” focusers, delivering uniformly crisp views across the field.
• Exceptional Image Clarity: Offers incredibly sharp views from the center to the edges of the field of view.
• High-Quality Light Transmission: Features a fully multi-coated, 8-element lens design, ensuring excellent brightness and clarity.
• Expansive Viewing Angle: Wide 65° apparent field of view, ideal for a comprehensive astronomical observation experience.
• Comfortable Observation: Generous 20mm eye relief with a fold-down rubber eyeguard, accommodating both eyeglass wearers and non-eyeglass wearers.
• Durable and Ergonomic Design: Machined from high-grade aluminum with a black anodized surface for durability and a molded rubber grip ring for secure handling.
• Universal Filter Compatibility: Internally threaded 1.25" barrel allows for the attachment of standard filters and accessories.
• Versatile Compatibility: Suitable for use with 1.25” star diagonals and focusers.
• Parfocal Advantage: Enables seamless switching between Ultima Edge eyepieces without the need to refocus.
• Note on Parfocality: The 24mm model is not parfocal. Parfocality is maintained only within the Ultima Edge line and does not extend to eyepieces from other brands or series.

Specifications