> >I really appreciate the replies. In the work flow example I gave earlier in
> this thread, am I correct that there is no other practical way to accomplish
> those steps on a photo other than to perform them destructively on a single
> layer (set levels, hit ok, correct color, hit ok, etc. so that you can't go
> back without undoing in sequence or just scrapping your work and starting over
> from scratch)? And flattening or merging layers is really sort of a 'kicked
> down the road' way of 'hitting OK' albeit you are committing to a batch of
> changes rather than accepting them one at a time - better, I guess, in that
> you get to see the net effect of all the layers in the stack before committing
> to their effect.
> So, if I'm correct, then, I finally think I've grasped how to use layers in
> editing a photo.
I am no expert but I think you are nearly there. One thing to bear in
mind is that, with a tool like levels, every time you use it and press
OK you will lose some detail. So it will pay not to accept your changes
until you are really satisfied with the result. If you need to go back
then it will probably be better to redo that layer from fresh. In other
cases with a layer stack you can, of course, turn layers on and off with
the little icon on the left and so work on any layer you wish.
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