Astromania Telescope Eyepiece 2 inch 15mm - Ultra Wide 80 Degree with Fully Multi-Coated Optics - 2 inch SWA Wide Field Eyepiece Accessory for Astronomy & Stargazing - Compatible with Most Telescopes

80 Degree Ultra Wide Fov Eyepiece: Experience celestial wonders with Astromania's swa 15mm eyepiece; featuring an 80 degree field of view; perfect for deep-space observation with 2" telescopes; it offers 30% wider views than standard eyepieces Multi-Layer Coating: Advanced 6 elements in 4 group lens structure minimizes distortion; Anti-reflective broadband green film enhances contrast; Scratch-resistant coating ensures long-term performance for telescope eyepieces Universal 2" Standard with Filter Compatibility: Industry-standard 2” barrel (51mm) fits most modern telescopes; rear female threading accepts 2" filters & barlow lenses; rugged CNC-machined aluminum construction prevents light leaks Extended 20mm Eye Relief for Eyeglass Wearers: Generous 20mm eye-to-lens distance accommodates prescription glasses; twist-up rubber eyecup adjusts for individual comfort; parfocal design maintains focus when switching eyepieces Aluminum Alloy Material: This 2 inch telescope eyepiece is made of aluminum alloy and can withstand extreme temperatures; anodized surface resists corrosion & wear; ergonomic rubber eyeguard ensures comfortable stargazing sessions