Bruce,
I seem to remember reading that adjustment layers are not rendered at once;
they are rendered serially, so no different from the other approach except
that you can alter them at will.
Bob Frost.
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From: "bruce greene" <bagreene@...>
> I think that one might be better off using many adjustment layers
> instead of many single adjustments (talking 8 bit files here).
>
> By using adjustment layers only one render will take place instead of
> multiple rerendering of the image.