The adapter complies to a Sony A550 and an old Cullmann Aufsteckblitz and a Metz handheld flash with PC Blitzkabel its function. On the camera, the speed is set to 1/125 sec for example, and the aperture according to the specifications of the flash unit in manual mode (M). The above Flashes regulate then as other old computer flash units also, the amount of light a flash device internal sensor. TTL does not operate even when the contacts are optically available. Mechanically, the adapter reasonably stabiel, but he has no lock to the camera's hot shoe but only a resilient "tab", which holds the adapter in doubt, not really sure on the camera when a heavy flash unit is mounted.
