operates the Metz MB24AF-1 with a Sony Alpha 7R. For this purpose, a hot shoe adapter. This combination suffers from a bit of instability. However, easy to handle. The flash unit is working to the complete satisfaction. Corrections are in standard case not needed. However, very precise possible. GN / power is sufficient for distances of more than 4 meters at ISO 100. I put this device primarily as a fill-in. Here also distances up to 10 meters at ISO 100 are possible. is somewhat larger than Sony original / compact, but also in the output better.