Why Pentax never made a 500 FGZ for the MZs, or*istD is completely beyond me. I mean what the hell were they thinking!
The 360 is too weak, can't swivel, can't use a power-pack, and has a hot shoe locking system that's made of Swiss cheese. Mine broke the first time I mounted it. If this new Sigma flash had an auxiliary socket to plug a Quantum Turbo Z into it, I'd buy one. Wedding photographers need those features....all of 'em! Max