I wanted to use the double-Fotoschuh Adapter to simultaneously by my 15mm wide-angle viewfinder and a spirit level (both of Voigt longer) to connect. On the one hand my copy is not 100% aligned parallel to the camera; So it sits slightly askew. Secondly, the expensive spirit level and the expensive viewfinder simply fall out of the adapter when you hold the camera wrong. There should be in the two accessory shoes retaining springs which also hold the accessories. Because it does not exist, everything falls out. Since the construction is completely half-baked, I can only advise every buyer urgently from buying.
