Tetherlock prevents camera cable port damage and signal disconnection from any digital 135mm and medium format cameras when tethered to a computer.The Tetherlock is easy to use - just insert a Firewire or USB Cable into one of TetherLock’s 5 differently-sized cable channel slots. Then Plug in the Firewire or USB cable end closest to the camera’s own cable port and then plug the other end of the cable into a computer.And that’s it,your now ready to shoot Tethered.Features:A quick release plate can be mounted to the bottom of the Tetherlock's 1/4/20 female thread mount for quick table top or in-studio shooting, when using a tripod.Can be used with almost any USB tethering cable or Firewire5 cable slotsBottom of mount features a grip base so that most quick release plates stay firmly in place