The shoe mount flashes I have owned all retracted the center pin, (not much of a pin actually, usually a wire contact on these cheap, or should I say inexpensive units), when a PC cable was plugged into them, (a couple of Honneywells two Vivitars and an off brand something I don't remember).. I suppose just breaking contact would have been enough. If the manufacturer keeps the foot hot then you will have trouble. I do own a couple of Pentax AF280Ts but they don't have built in PC connection capabilities.

On 3/7/2011 2:36 AM, Larry Colen wrote:
In my collection of photo gear that looked handy when I bought it, are several 
metal cold shoes. Unfortunately, when I mount a speedlight on one of them, bad 
things happen. Or at least good things don't happen.  Are speedlights supposed 
to work, even with their hotshoe contacts shorted out?

And, while I'm at it.  I've got a couple of radio triggers that work great with 
studio strobes, but they've got the mini phono jack plugs on them. So I can use 
them with an adapter to 1/4 inch on my Paul C Buff strobes, but I can't use 
them with my speedlights.  My radio triggers are Blazzeo, so there's a chance 
their speedlight receivers will work with their studio transmitters. Or there 
might be an adapter from phono plug to hotshoe.  Unfortunately my optical 
trigger shoes, which have a PC jack, the PC jack only works to trigger other 
lights, not to trigger the strobe in the shoe from a PC cable.


--
Larry Colen [email protected] sent from i4est







--
Where's the Kaboom?  There was supposed to be an Earth-shattering Kaboom!

        --Marvin the Martian.


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