Originally Posted by
Geoff F
Did you shoot Raw, Frank? It will produce better results on this sort of problem.
Either way, you will probably get best results from combining two separate exposures or layers with different brightness levels. Assuming you couldn't expose for the hand at the time of shooting.
As it is, I'm afraid that a lot of detail will be missing from the over exposed areas.
However, what I would do to try to salvage something, if you didn't shoot Raw, would be:
Use an Adjustment Layer, plus mask, and adjust this to remove the excessive brightness (I would use Curves) switch the mask to Hide All (the adjustment will disappear) then carefully paint over the bright areas with a low opacity soft edged 'white' brush so that the 'hidden' darker area gradually shows through.
Take it gradually and make several passes of the brush until you get the desired effect.
Alternatively, if you aren't too sure of this method; create a duplicate copy layer of your original background. Adjust this layer for reduced brightness and add a Hide All Mask. Paint over the bright areas exactly as above until it looks better.
The only advantage with this method is that if you temporarily hide the background layer you will be able to see exactly how your 'painting' is effecting the layer. Which may prove useful if you aren't familar with working directly on an adjustment layer.
But, as I said, unfortunately you can't recover the lost details; all you can do is to tone down the brightness a little on selected areas.