Originally Posted by
Bob Salomon
First, your shutter is more then overdue for a CLA. Next your shutter may fire an electronic flash but not in synch. Your shutter is synched for flash bulbs. You need X synch. That means that your shutter may synch electronic flash at some slow speed but not at all speeds. To see, hook your flash up to your shutter, open to the largest aperture, remove your ground glass and fire the shutter while looking through the back of your camera. If it is in synch at that shutter speed you will see a bright circle of light when it fires. If you don't keep repeating this at lower shutter speeds until you find one that does show you a full circle of light. That would be the fastest shutter speed that your flash will work at.
Unfortunately, since it will be a slow speed you may get double images as you will probably also get an exposure from the ambient light.
Some repair shops can add X synch to your shutter and then you would be in synch at all shutter speeds with your strobe.
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