Astromania Fully Multi-coated 2" Ultra-Wide 80 Degree Eyepiece For Telescope - F30mm

80 Degree Ultra Wide Fov Eyepiece: Experience celestial wonders with Astromania's swa 30mm 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 7 elements in 5 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 22mm Eye Relief for Eyeglass Wearers: Generous 22mm 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