Using this camera since April 2014, the "dry", I had the unpleasant surprise to discover that the housing (certified waterproof to 40 meters) has not withstood the first small aquatic output. Yet although a "benign" Webbed output in the peninsula of Giens (Var) at depths of no more than 5 meters. I havent been able to save the memory card with its 15-minute film. Next time, I will test the vacuum box.
By cons, Amazon, has been exemplary: I have been refunded in the week after returning, at their expense, the unit.