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Orion #58 Green 1.25" Telescope Eyepiece Filter 

Used with plastic foam storage case.  Eyepiece filters are an invaluable aid in lunar and planetary observing.  They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, and lessen eye fatigue.  Orions's filters are made of high quality, solid plane parallel glass with excellent homogeneity.  Made in Japan.   The filter cells are anodized aluminum.  The colored filters are anti-reflection coated to prevent glaring and ghosting.  The filter is threaded to fit 1.25" eyepieces.

Filed under: Eyepieces & Accessories