ASA - 0.84x 4" Ritchey-Chretien Reducer Corrector

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The ASA 0.84X 4" Ritchey-Chretien Reducer Corrector will enhance your pictures from your Ritchey-Chretien telescope, by eliminating both coma and field curvature problems! This corrector lens is designed for use on R-C telescopes having an aperture of 0.4meter (15.75") or larger, and an f/number of f/8 or slower

SKU: ASA-4RCKORRR