Wimberley
F-2
Macro bracket
This bracket attaches to your lens or camera plate, and provides great versatility in positioning your flash. The two ball and socket joints provide great freedom of movement, making it great for many applications, including macro. The F-2 set consists of Wimberley M-1 and M-4 modules; if you want to use the bracket attached to the camera, adding an M-4 plate will make it even more convenient.
Attachment is done with a narrow Arca-Swiss type plate, so make sure your current plate is long enough to accomodate it.