 BetterPhoto Member |
Hot shoe trigger voltage I am trying to determine if my older Braun VariZoom 340 SCA flash (and a second 140 SCA shoe compatible with a Nikon EM & FM) that I previously used with my very old Pentax SV (SLR) Camera is compatible with my new Fuji FinePix S2 Pro Digital Camera. I am concerned with compatibility of the trigger voltage as well as the contacts on the 340 SCA shoe (sinlge contact) and the 140 SCA shoe (three contacts). I took the flash into radio shack and tested the voltage with a digital volt meter. When I turned on the flash and after it was fully charged up, the voltage meter registered 6.8 volts. When I flashed the unit, the voltage first dropped to 6.0 volts and then spiked to 10.4 volts before returning to 6.8 volts. I tried this several times and the only variance from these measurements appeared to be the spike which ranged from 10.2 to 10.4 volts. I emailed this information to Fiji Canada and received the following advice. “Please be advised when attaching a speed light flash onto the hotshoe of the FinePix S2 Pro digital camera, the flash voltage cannot exceed 250 Volts. Other units may damage the camera's electrical circuit due to incompatible voltage requirements, electric contact alignment or switch phase. The limitation is 125 Volts when you are using a Studio strobes which uses active current, and sends a more powerful current into the camera's hotshoe. A Wein regulator is recommended. A spike on your camera's circuit board is referring to a "short circuit" which can burn the main power board.” While this does not really answer the question it would seem that my flash attachment should be compatible. But, I am terrified of burning the main power board. Can anyone help?
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