To round out my RF kit, I picked up a small flash for my Bessa R the other day. It was a great deal, only $5. And it was a Voigtlander flash to boot! It's a V200, with original box and instructions. Nice and small and looks very at home on the Bessa. So I got it home, put it on my SLR and it fired away with a super bright burst. I put it on my Bessa and it doesn't work. I tried my SLR flash on the Bessa and that works fine; it fires at all speeds, 1 through 1/2000. I checked the location of the pin on the flash's shoe and it's in the same spot as my SLR flash.
So what gives here? Why does my flash work on one camera but not on another?