Wimberley F-1 Flash Bracket
This bracket attaches almost instantly to the quick release plate of your telephoto lens and wraps 180 degrees around the lens to position the flash above the lens. No more dropping and turning little screws for five minutes... Adjust the vertical position of the Tilt Arm on the Upright for different sized telephoto lenses. Flip the Tilt Arm upside down to lower the flash even further. You can also attach the Tilt Arm so that it positions the flash off-center.
The F-1 can be used on any telephoto lens with either a long enough plate or any Wimberley Plate such as the P-40 or P-50. All Wimberley heads have top of the plate mounting capabilities, that is, you can turn the clamp module upside down and attach the F-1 to the top of the plate.
The huge advantage of the F-1 over the F-4 bracket is that it can be used when you are working on the ground or from the car. The newer F-9 bracket has been designed to clamp to both the swing arm of the V-2 Wimberley and to the plates as well, but that said, I prefer the F-1 to the F-9 when working on the ground or from the car as it gives you more flexibility.