I bought this accessory hoping to have a diffuser to my internal flash cheaply. Mal took me: - Already, by its weight, it tipped forward the internal flash of my 700D, distorting the direction of it; - Just installed, plastic fasteners allowing it to fit on the flash began to break; - For the little I was able to use me, I find effective - very - relative. In short, I do not recommend this at all. A piece of kitchen paper or a ping pong ball cut will be 100 times more effective!