This is all great info about gamma correction, though from the title of the thread I was hoping for more practical details from those who have done the upgrade about whether Poser Pro 2010 is worth the $200-$250 over Poser 8.

Re: GC... BB mentioned screwy shaders in commercial skin materials. That may be so, but what can we do about it if we want to use GC with such characters? Have you seen the sheer number of nodes some vendors use to make a skin shader? I am nowhere close to knowledgeable enough to fiddle with all those nodes to remove the over-correction built into them. Better to just delete them altogether? Which ones? 

See the dilemma? I think this is why a lot of people just throw their hands up and turn off GC. They use as their lighting baseline what makes the skin look good, everything else follows that criteria.  Because turning off GC is one controll vs. minutely adjusting 10-15 nodes in the skin shader. 

I'm guessing vendors are making skin look good for the lowest common denominator, which right now would be users of P7 and earlier. So vendors fiddle the skin shader nodes from here to Tuesday to make skin look OK in standard P6-P7 lighting with no IDL or GC. Leaves those who want to use solutions like GC in a bit of a pickle.