Waterproof Camera Case and underwater pressure?

i'm planing to buy a waterproof case/bag for my Sony H10 camera. From what i found, most cases can be used up 30ft.





My question, if i go more than 30ft to 45ft what will happen? will the camera stop working or what?





i'm not aware of the effect of underwater water pressure on the cameras.Waterproof Camera Case and underwater pressure?
The pressure of depth can actually push the buttons in and keep them there. So as you are descending it may snap a picture and keep the button from being pressed again. (or go into the menu/setup and get stuck there)





I would reccomend a hard case as opposed to a bag for anything more than 15 feet. As you go do the air in the empty space is compressed in a bag this creates a squeeze (it will shrink and adhere to the camera making it difficult to use) in a hard case the pressure remains the same on the inside of the case allowing for normal function. You just have to make sure that you have a good seal as if the case leaks you're camera is shot.





They are not cheap, but if you are going to go 30-60 feet, i'd like for a case rated higher than your needs. This helpps ensure that the pressure will not cause issues.Waterproof Camera Case and underwater pressure?
The deeper you go the more pressure is placed on the object, it does not matter what the object is. your camera bag, as you descend pressure build up and squeezes the bag. eventually the the object inside will compress as well, (your camera) and this could (if deep enough) turn it into a bag of bits. Having said that its unlikely that @ 30-45 ft it is going to so that but there will be a reasonable amount of force exerted on it. At sea level there is a force of 14.7 pounds per sq inch at 30 ft there is double that and the air takes up half the space it did on land. as you go deeper the buttons on the camera may start to stick, then seize. the case may crack and let water in, or the seals may give up. Water and cameras dont mix.





to be honest its worth getting a housing that is rated much deeper than you intend to go, plenty of room for error.








Go here of you want a better explanation





http://www.lakesidepress.com/pulmonary/b鈥?/a>





WHAT IS BOYLE'S LAW








RR