The side of the TV, the adapter is set, but was extremely difficult to remove. It was necessary to go in force (yes, I had seen the small safety pin) and it has left some marks on my goal. On the side of Fuji XT-1 reverse problem: impossible to achieve lock the adapter. The bayonet locks before the final click (smarting from the other side, I did not force). The only good news is that the draw is good. But it's a little satisfaction and this ring is not usable: we need a hand to hold the device to maintain a lens on the camera and a third for the development
Back to the seller who paid me purchase. However, the return costs were not taken into account.