Nikon D700
A camera is the heart of all imaging systems. I use a Nikon D700.
The D700 has a full-frame sensor; 4256 x 2832 pixels.
In this photo, it is shown with an all-in-one t-adapter/t-ring in place
of a lens. The t-adapter/t-ring assembly allows a camera to be mounted
in the 2 inch telescope focuser.