It would always be interesting to listen the story from the horse’s mouth. Jame McGarvey shares his experience of how he developed the world’s first Digital Single-Lens Reflex camera.
As clear from the above picture, the only real modification to the camera itself is the back cover. The main difference between an SLR and a DSLR is really just the D, which was accomplished by substituting the film with a CCD.
The possibly-clandestine purpose of this device is intriguing. It was exclusively deigned to pass as a film camera which explains the ribbon cable connecting the CCD module to the control box which would be stored in a camera bag. You will also be delighted to learn that the customer who tasked Eastman Kodak with developing the system preferred Canon camera bodies. So this Kodak DSLR was built using a Canon F-1 body.
Via : Hackaday
Source : Eocamera.jemcgarvey