I can only say, what chance did I have. Indeed, during a mountain hike, I fell violently on the rocks, obviously with the Canon 7D equipped with this screen protector. The same protection was sprayed in star shape, which saved the screen and simultaneously the camera. I reassure you, the device works perfectly, without any change, and I can say that for once, I actually tested this protection in extreme conditions, and frankly do without for a few euros would be a big mistake.
