I had to wait two weeks to receive this adapter but it really is perfect and the price is given! riding an old Minolta 50mm f Rokkor MC 1.4, the results are extraordinary; by making the manual focus, no problem, the ring allows precise focusing, even if we fumble a bit at first with the Alpha 6000 and the target for the development, because we are all accustomed to fast autofocus. For the price, no complaints, it's an excellent deal, although I would have liked to hear a locking click of the ring on the camera. Top tip is to buy this ring and go on EBay look good old light targets, the result is amazing, compared to the price of modern lenses, faint and expensive! for an amount "ridiculous" can have a very good 50mm very bright and with this adapter ring mounted on a Sony Alpha 6000, but happiness!