Sea & Sea 860G problem with auto focus

[ephant]

I am a beginner underwater photographer and I just got a Sea & Sea 860G. I had trouble on my first dive trip with the camera. It seemed to want to stop auto-focusing after a few photos. It didn't seem to matter what the depth was. Topside it worked fine, just underwater after a period of time it would quit focusing. Has anyone else had this problem? Is it operator error, or is there something I can do to fix it?
Thanks for any advice/information you can give me.

[Nocturnal Lights]

Usually that's due to the fact that there's not enough light as you get underwater. What kind of shots have you been taking? Were you taking pictures in a low light environment?

[ephant]

No, plenty of light; just unfocused. I have a large external stobe that seems to work fine and provides plenty of light. Thanks for the advice, though.

[Nocturnal Lights]

The strobe will provide the light the moment the camera takes the pictures. But what about before the picture is taken? Is there enough light for the camera to find the focal point of the shot?

[ce4jesus]

Also, describe what not focusing is. You halfway press the shutter and nothing happens or the lens goes in and out searching for a focal point?

[ephant]

Halfway press the shutter and nothing happens. I've actually talked to Sea&Sea and they say that this camera does have a history of thie problem. They have fixed it, they say. I've sent the camera off and I hope that a new one will come back in time for my trip in two weeks (less than that, now).