The film gate design permits close approach to the film gate aperture by the video capture device so either a macro lens equipped video camera or a machine vision camera can be used. Cost led me to use a reverse mounted camera lens to provide my video camera with the required macro capability.
Photograph 15 shows the components
Photograph 16 the final assembly used. To test that my video camera and reversed lens combination worked I used a piece of mm graph paper as the target image. I then set the video cameras’s optical zoom to maximum and captured
Photograph 17. The 4 x 3 mm squares shown demonstrate that the 4.88 mm by 3.68 mm frame of Standard 8 mm film can be safely captured with less zoom.