We needed this adapter for our Panasonic HPX-371. It mounts exactly on the cameraside, but the mechanical connection to the accu is a little bit dangerous. For example: A soft touch of the release lever and you find a SWIT-Accu on the ground again. Other accus have parallel edges on the mounting plate and you can´t loose them accidently. This missbehaving seems to be more a fault of the SWIT mounting plate than of the adapter. The adapter was more than 70 Euros cheaper than those of my dealer after having paid all austrian taxes. It seems to work for a long time. Its not excellent but very, very good.