Founder Optics 2" Dual Threaded Adapter for Field Flattener - DTA-FF2 Mirror Diagonals Celestron C11-A XLT Schmidt-Cassegrain OTA

Celestron C11-A XLT Schmidt-Cassegrain OTA - 11" SCT Optical Tube Assembly Features

Includes 3-element focal reducer and spacers to configure as a 6-element f/4

80 page paperback book

Telescope comes complete with everything you need to view the wonders of the night sky the first time out

Founder Optics 2" Dual Threaded Adapter for Field Flattener - DTA-FF2 Mirror Diagonals Celestron C11-A XLT Schmidt-Cassegrain OTAThis heavy duty dual threaded 2" adapter is designed to attach the Founder Optics field flattener to telescopes with a 2" focuser. When doing astrophotography it is important to keep the optical chain as tight and aligned as possible. This adapter uses threads instead of screws or tension adapters for the mechanical connection, which reduces the possibility of a gap or flexing in your optical chain. Paying attention to the quality of your adapters