Prime Focus: For prime focus photography you will
remove the lens of your "single lens reflex" or "digital single reflex"
camera and remove the eyepiece from the telescope. Using a "T-ring"
and "photo adapter" you will connect the camera to the telescope. Use
the telescope focus knob to bring the subject into focus in the
viewfinder or on the digital camera's LCD screen.
T-rings are manufactured for most single lens reflex cameras and
connect to the camera in place of the camera's lens. A photo adapter
screws into the T-ring.
The above SLR camera is shown with a Canon E0S T-ring and a 2" photo adapter for using in a 2" focuser; with a T-ring and photo adapter for a Schmidt-Cassegrain and with a T-ring and 1.25" photo adapter for use in a telescope with a 1.25" focuser.
Camera, T-ring and photo adapter.
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