Have been playing with LumiQuest Softbox III for a while. Seems to be a useful gadget, even though it's not as versatile as other diffusers and bouncers. It's large (for a hot shoe light modifier) - 8"x9", but folds flat. Works great for product and macro photography. Some great portraits can be done too. The unit blocks auto-focus assist beam. Make sure you're OK with that. Here is my review: LumiQuest Softbox III Cheers!