Case tested on a Canon EOS 400 D, and a Nikon D 300 and no problem, just look at the compatibility on the manufacturer's site, beware there are 2 different cases of models depending on the size of the unit. Very good seal, tested snorkelling in Malaysia for a month and nothing to say it is still tight. Does not change the picture quality, the rendering is superb. Small flat, there is still air in the case, which is a bit annoying to take photos further. All buttons are accessible virtually under water, but very difficult to handle the zoom.Il need an adjustment period to learn to manipulate the apparatus inside, especially with the mask and snorkel! Tested with a 18-55 zoom, but it seems to welcome a larger zoom. Very good value!