In Stock Shop our in-stock and ready-to-ship telescopes, telescope systems, and mounts. Add to Quote CDK17 f/6.8 Optical Tube Assembly $22,500.00 Add to Quote L-600 Direct-Drive Telescope Mount $35,000.00 Add to Quote L-550 Direct-Drive Telescope Mount $30,000.00 Add to Quote L-350 Direct Drive Telescope Mount $14,000.00