underwater housing A540 A570 interchangeable?
The two cameras are slightly different dimensions so I wouldn’t. The A540’s a little longer and thicker, while the A570 is a tiny bit higher. So they might wobble around a bit inside the incorrect housing. I’m not sure about whether the controls are identically-placed on the two models; I had the A620 and housing before I got the A630 and the controls were just slightly differently placed, so I didn’t have access to all of them when using the housing.