#17648 & #17657 - Pyxis SCT thread mount. Some cameras from Apogee and others use this 2" x 24 TPI thread. This thread also is common for the small MeadeCelestron telescopes, AO-7 and f/6.3 reducer. Use the short thread version #17648 for the Apogee cameras and the long thread version #17657 for everything else.
|Name||Optec - Pyxis SCT long threaded mount|