Bought this camera just before a trip to Hawaii. Got a lemon (it happens), it wouldn't acknowledge any sd card. I called Intova to see if they could tell me what I was doing wrong. The rep. I talked to, Kevin, said it must be a problem in the camera, and he sent me a new one right away. He saved my Hawaiian vacation. Plus the camera takes good vid. I only snorkeled, but was very happy with the pics. Probably need a light for anything deeper.