We have a Nikon TS100 Microscope (https://www.nikoninstruments.com/Products/Inverted-Microscopes/Eclipse-TS100) with a camera trinocular - it's designed to be used with a C-mount and a C-mount camera, but it would save everyone a lot of time and money if we could use it with a DSLR we use with the neighboring Zeiss microscope.
Is there a reliable way to attach a DSLR to the fitting for a C-mount? (or to the C-mount aperature?)
Rudimentary web searching shows adapters like these: http://www.edmundoptics.com/microscopy/relay-lenses-couplers/c-mount-camera-lens-adapters/1459/
But it's a little unclear to me that this is what I'm actually looking for, the page says
By popular demand, Edmund Optics carries 35mm SLR (Single Lens Reflex) camera lens c-mount adapters for standard C-mount video cameras. External C-thread at one end of the c-mount adapter fits most standard industrial video cameras. The other end of the c-mount adapter accepts camera lenses.
It sounds like I might not be able to attach this adapter to a C-mount already affixed to the microscope.