What is the primary function of the Baader Hyperion SP54/M28 DT-Ring?
Its primary function is to connect a camera with a standard M28 filter thread to a Baader Hyperion eyepiece for afocal photography (digiscoping). It is specifically designed to create the shortest possible physical connection to reduce vignetting.
Why is the 'shortest distance' important when using the Hyperion SP54/M28 DT-Ring?
In afocal imaging, any extra distance between the eyepiece and the camera lens can cause significant vignetting, where the edges of the image appear dark or clipped. By minimizing this distance, the SP54/M28 DT-Ring helps ensure the camera's sensor is fully illuminated by the light from the eyepiece, resulting in a complete, brighter field of view.
Can I use the Baader Hyperion SP54/M28 DT-Ring by itself?
No. This is a critical point. The SP54/M28 DT-Ring must be threaded onto the Baader Hyperion Digital T-Adapter M43/T-2 (part #2958090), which is sold separately. The #2958090 adapter is the piece that actually attaches to the Hyperion eyepiece and provides the SP54 thread this ring needs.
What kind of camera connects to the M28 thread on this DT-Ring?
The M28 thread is a common filter thread size on many point-and-shoot digital cameras and some dedicated video cameras. You should check the filter thread specification of your camera lens to confirm compatibility before purchasing.
I want to image the Moon with my 13mm Hyperion eyepiece and a point-and-shoot camera. Is the SP54/M28 DT-Ring the right part?
Yes, this is part of the correct solution, provided your camera has an M28 filter thread. You will need two Baader parts: the Hyperion Digital T-Adapter (#2958090) to attach to your 13mm Hyperion, and this SP54/M28 DT-Ring to thread onto the adapter and connect to your camera.
How do I attach the Baader Hyperion SP54/M28 DT-Ring to my Hyperion eyepiece?
You do not attach it directly. First, you must attach the Baader #2958090 adapter to the top of the Hyperion eyepiece. Then, this SP54/M28 DT-Ring threads onto the male SP54 thread of that adapter, providing the final M28 connection for your camera.
