Celestron Piggyback assembly is a great addition for observers interested in astrophotography of the deep sky. This mounting allows you to connect the camera (including the lens) to the telescope tube. Thanks to this, it is possible to shoot with any lens while driving the camera using the telescope. The adapter fits SCT 5 ", 6", 8 ", 9.25", 11 "and 14" tubes (including Nexstar 5 SE, 6 SE, 8 SE). The set screws are suitable for fixing.