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 ~29mm (unstretched). Height = 12.5mm. These are from GSO's 1.25" Plossl and SuperView eyepieces. As a reference, the diameter of the barrel extension this eyeguard sits over on the 1.25" SuperView eyepiece is 32mm. Can be folded down. Made in Taiwan.
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