A surgical microscope c-mount adapter is used to connect a microscope camera to the surgical microscope side port. It has a standard 1″ (or 25mm) diameter male thread which matches with the female thread on the camera. In addition, stand alone c-mount adapters are microscope specific and are made to match up with your specific microscope’s beam splitter/side port. For example, if a camera that is specific for use with an endoscope is used on a surgical microscope, a spacer my be required because of the distance difference of the camera lens. The adapter can be a separate stand alone product or be integrated onto a beam splitter.