Ken,

If you focused manually, you should get what you see in the
viewfinder. However, with AF I think the results would be more random
and the AF system could easily get fooled. It doesn't take much
movement of the water to create enough contrast for the AF to catch
onto it.

Tom

On 4/22/06, Ken Durling <[EMAIL PROTECTED]> wrote:
> I was shooting around tide pools today, and despite what I thought
> was pretty careful focusing, photos of sea urchins under the surface
> of the water were out of focus.  Does AF get fooled by the
> intervening water surface?  Is there a trick?  I don't think I've
> tried this before.  There are no visible water reflections in the
> photos that the AF could have grabbed, the water was very still and clear.
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