The Baader Hyperion Digital T-Adapter permits direct coupling of any T-threaded camera or accessory to the M43 thread of the Baader Hyperion Eyepieces.  For the Clickstop Zoom Eyepiece, the Digital T-Adapter attaches to the M54 thread of the Zoom (located under the rubber eyeguard).  These adapters give an external T-thread (M42x0.75) right at the eyelens of the Hyperions, which enables the Hyperions to be used with CCD and DSLR cameras for classic eyepiece projection photography.  With this adapter, any of the Baader T-2 Extension Tubes can be used in-between the eyepiece and camera, to project and magnify the image as much as desired.   The threaded direct-coupling makes this system extremely rigid and compact.

Note:  This Zoom model is for the new Mark III Zoom Eyepiece which has a M43 thread, the old zoom eyepieces had a M54 thread.