I was a last minute addition on Dave Mackiewicz's boat the Caramea, and the itinerary was looking like a Monterey side dive. Turned out the ocean cooperated with a smooth ride down to the outer pinnnacles in Carmel for dive one. A mild surface current and moderate surge all the way to the bottom made my choice of 'manual focus only' for macro look like a really bad decision. My new housing appears to be incompatible with the gear which allows switching from manual and auto focus. I was forced to choose which and I chose manual. This requires manually focusing on a subject of a given size, filling the frame with it, and then moving the camera back and forth until the object comes into focus. Once again, very difficult with substantial water movement.