You're right. I am thinking that maybe I could mount a small electronic flash on a mount and run a couple of wires to the contacts in the camera's bulb holder. Then the current from the camera would provide the signal for the electronic flash to flash. In other words, the current from the camera would bridge the two contacts on the flash (I'm talking a real simple Sunpak flash). The flash will flash if those two contacts are bridged with a wire. Will the current from the camera do the same thing? Proof of concept will be to jimmy a suitable AG1 socket plug similar to the AG1 bulb base and long enough to reach from the recesed bulb hole and then press the camera shutter with wires contacting the two terminals on the flash. Weekend project!