Pentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel

Designed for use with PENTAX brand spotting scopes and with astronomical telescopes with appropriate 1 1/4" or 2" focusers. Ideal for both ground and astronomical observations, this eyepiece features fully multi-coated lenses to increase light transmission and color quality, high-refraction lanthanum glass elements for high-resolution images with minimal aberrations, and JIS Class 4 weatherproof construction for durability. Engineered using advanced computer simulation design technology, this high-performance eyepiece provides 20mm eye relief.

WIDE FIELD OF VIEW - Enjoy a broad 70-degree apparent field of view allowing for immersive astronomical observations and easy tracking of objects across the night sky. COMFORTABLE VIEWING - Benefit from a generous 20mm eye relief providing comfortable viewing even during extended use especially beneficial for eyeglass wearers. ENHANCED LIGHT TRANSMISSION - The Super Multi-Coating (SMC) technology maximizes light transmission ensuring brighter images and superior contrast for detailed observations. ROBUST DESIGN - Built with 8 elements in 5 groups this eyepiece delivers exceptional optical performance while maintaining durability for long-term use in various conditions. VERSATILE COMPATIBILITY - Featuring a standard 1.25" barrel size the Pentax XW eyepiece is compatible with a wide range of telescopes making it a valuable addition to any astronomer's toolkit.