The Hyperion T-Adapter for Clickstop Zoom by Baader Planetarium:
Baader's Hyperion Digital T-Adapter permits direct coupling of any T-threaded camera or accessory to the M43 thread of the Hyperion Eyepieces. For the earlier click-stop zooms with 53 mm thread (But not the Mark III Models), the Digital T-Adapter attaches to the M54 thread of the Zoom (located under the rubber eye guard).
These adapters give an external T-thread (M42 x 0.75-inch) right at the eye lens 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.
OPT Product Number: BA-HTA54/T2