It doesn't have to be motion blur to be caused by motion. If the camera moves position after it has focus locked it will produce an out of focus picture.
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It doesn't have to be motion blur to be caused by motion. If the camera moves position after it has focus locked it will produce an out of focus picture.
That's true. For that reason I prefer using spot focus myself - but then you have to be really sure what the camera is pointing at when it achieves focus. At the end of the day though it really IS about staying still on the shot. Lot's of divers are still moving....not just the camera....the whole diver, when they take a shot. I've seen photos from people who have never used a camera U/W before, but have excellent dive skills.....buoyancy, trim - they're just rock steady in the water - and you can see it immediately in their shots.The AF has to lock on to something, or the camera won't make an exposure at all (at least with point and shoot cameras in an automatic mode). The problem is that it locks somewhere other than the subject. The camera can't tell that the thing that you want to take a picture of isn't in focus, it just gets feedback that a focus lock has been achieved and fires the shutter...