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Date: 2013-09-18 14:40:19Reducer Focal length Angle of view Camera Optics Science of photography Camera lens | Hyperion Focal Reducer The Hyperion focal reducer was designed to provide a wider field of view and faster focal ratio for the Hyperion line of telescopes. Its design preserves the excellent optical performance of the HAdd to Reading ListSource URL: starizona.comDownload Document from Source WebsiteFile Size: 228,58 KBShare Document on Facebook |