Thanks for the reply..After putting up this post..I looked at the pc cable. It is pc male-male; but on closer inspection, one of the male pins is very short and doesn't make electrical contact. Does anyone know where to order an appropriate pc cable? I may just have to make one.
Any advice on which Metz flash to use with an SCA 390 adapter? The Metz site is not very helpful. They recommend a 54-mz4i, which is a Nikon compatible flash. By the picture, it doesn'g look right to connect to the top of the SCA 390.