Gadget Place Popup Flash Diffuser for Panasonic Lumix DMC-GF7 GM5 GH4 Pop-up Flash Diffuser Kit. This is a 4-piece pop-up flash diffuser kit. There are 5 sets of mounting holes on each diffuser to suit various heights of pop-up flash of different cameras. It is a very useful and handy gadget. Samples show the effects of each diffuser.