Hi   For a camera project I don't want to exceed the dimension of the spinning mirror (and therefore the overall width of the camera body) so I ended up with a solution that accepts C-mount lenses with a barrel diameter of max 40mm (for the first 10mm from the mount forward) and can't have lens elements that protrude more than 8mm inwards into the camera.   Do many of your favorite Super8 lenses exceed these dimensions? I found a few zoom and wide angle lenses that would not fit, but a vast