Been awhile, now medium format fan. On the Isolette is a cold shoe and a flash port as well as a trigger port. There is only a letter B on the speed dial that goes up to 200. I understand timing differences in bulb and electronic settings, allowing best flash for the time lens is open. Apparently my only shot is set it to 1/25. I'm not interested in shooting on B then introducing flash. So... IF It can shoot flash at 1/25, I am supposed to insulate the shoe for electricity/grounding? Finally, I have shot thousands of bulbs and no electric. If this works do i just buy any old flash and push in the flash trigger wire and add batteries? Plug and play? Thank you very much for reading. Ever hear of a camera taking usable pics at 20 feet for fingerprints?