Farpoint Dovetail Radius Blocks for Celestron 8" Tweet Description Farpoint's Dovetail Radius Blocks for Celestron 8" are to be used with existing dovetail bars and are for Celestron 8" Schmidt-Cassegrain Telescopes. Details Additional Category Tags: Mounts & Tripods, Mount Accessories Category: Optics Manufacturer Catalog Number: FDC8R Product Manufacturer: Farpoint Subcategory: Telescopes