I've just changed the type of lens board I am using and have discovered that the new type (Nikon) permit me to use those small screws to prevent the lens from m oving. I only have one lens that has the screw but would now like to add the scr ew to all of my lenses. Could anybody tell me where I can buy these screws and a lso are they different sizes for different shutter/lens combinations ?
Thanks
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