Heres 2 photos taken during a shutter test where the blade has been almost closed over and a very tiny slit is all that lets any light through. This would produce a shutter speed too fast for effective exposures (in convnetional use anyways). The LED light source illuminating the paper on the other side of the gate flickers and this …

Using a linear stage from Thorlabs and some basic metalwork I can now accurately position a digital camera or just the lens to line up with the camera. A bit of tweaking to get the relay lens bellows to fit. All that needs doing now is take up motor electrics, then I’m ready to try some film to film tests. …