Damn, I have done that several times and I forgot, but this should not be too hard to do. After all, the shutter consists of but two blades, John, and I do remember that you can fire that shutter in the state that it is in right now, naked, so to speak. Test a few configurations and watch when you fire that those blades don't go flying away! Perhaps ic-racer is correct here, but honestly I don't remember the precise confuration. - David Lyga