Item No. 601-21065
Manuf. No. Parks Optical 601-21065

PARKS 12.5″ f/4 Primary Mirror

Parks Parabolic Primary Mirrors are made of premium fine annealed, low expansion Pyrex, with a full 1:6 ratio of thickness to diameter. Individually hand-figured by a skilled optician, each disk produces a good diffraction ring with no turned edges or edge zones. The optical surface exhibits straight Ronchi bands edge to edge under the sensitive double pass auto-collimation test. Aluminized and silicon monoxide over coated for long lasting performance.

Parks Optical Telescope Component - Parks 12.5

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Parks Optical Telescope Component – Parks 12.5″ f/4 Parabolic Primary Mirror 601-21065Â