The housing itself is tight. I have it. In about 30 diving missions in use The operation is also achieved fine. The only drawback, which annoys me repeatedly, is the FATS framework for the lens. I have no external flash and must seem to be living with the flash from the camera. :-( Now, the half of the image is located in the flash shadow. Canon has the most recognized and the case settled a white lens hood. While the reduce the problem, but unfortunately weakens the luminosity of the flash. Meanwhile, I have looked enviously at fellow diver (buddies), the case of other companies here had that function without these expedients. Therefore 2 points deduction due to my envy.