With two -20 mounting points, the Pocket Wizard AC7 Shield can be mounted both vertically and horizontally on light stands, clamps, brackets or simply handheld. The back of the flash remains open for complete access to the LCD and flash controls and there is access to the remote power port. The flash head can be rotated when using the AC7 shield due to a small cut-away in the side of the shield. When used with an umbrella, the AC7s lay-flat design places the flash more in the center of the umbrella than usual and produces a symmetrical light shape for incredibly even light dispersion. Most of the popular diffusers, grids, snoots and reflectors can still be used with the AC7 shield in place.