Experience stunning cosmic panoramas with Celestron Luminos eyepieces. Featuring a wide 82-degree field of view for high and low magnification, Luminos parfocal eyepieces let you smoothly transition from low to high power with little to no focusing. The scratch-resistant, hard anodized aluminum barrel is threaded to accommodate Celestron 2” thread-in filters. Finally, they’re comfortable to use: retractable eyecups provide an ultra-low profile for eyeglass wearers, and the ergonomic rubber gripping ring aids with secure installation and removal. * 7mm - Eye Relief 12mm * 10mm - Eye Relief 12mm * 15mm - Eye Relief 17mm * 19mm - Eye Relief 20mm * 23mm - Eye Relief 20mm * 82 Degree Field of View * Retractable Eyecups * Parfocal * Threaded barrels for filters * Rubber gripping ring