HDT54 37mm Hyperion Digital T-Ring

The Baader HDT54 37mm Hyperion Digital T-Ring is a precision adapter that enables direct attachment of digital cameras with 37mm filter threads to Baader Hyperion eyepieces (fixed focal length and Mark II Clickstop Zoom models) for afocal projection imaging. This adapter provides a rigid threaded coupling that positions the camera lens immediately above the eyepiece's large eyelens to eliminate vignetting, delivering sharp, projected images without optical compromise. The HDT54/37 requires a separate 54mm extension ring (HEXT54) for complete installation and is compatible with DT Adapters II and III.