Flexible rubber eyeguards reduce ambient light and glare reflections, thus protecting your dark adaptation, while providing the viewer with comfort for maximum visual effectiveness. Eyeguards assure proper eye-to-lens positioning and also protect the optical surface from grime and oil. The eyeguards are made of flexible, yet strong rubber so they will stretch a bit (3-5mm) beyond the nominal diameter noted below to fit over many other eyepieces.
Please note that these are sold individually.
Nominal diameter ~33.5mm (unstretched). Winged eyeguard that fits Antares' 1.25" Ultima Plossl, Abbe Ortho, and many other eyepieces. As a reference, the diameter of the upper barrel these can fit on is 32mm (Antares Plossl) and 34mm (Antares Ortho). Made in Japan.