I had a play with the PS HDR feature today. Just took a range of shots of my garden at home from 1/4000 to 1/10. It does give you a heck of a lot of dynamic range to play with, though I found it slightly unreal looking (like a souped-up shadow/highlight tool). The slightest breeze also affected the trees from shot to shot. I'm sure this technique will pay dividends on landscape shots (so long as the mountains keep perfectly still).
1/4000sec at f/2.8
1/10sec at f/22
Final HDR image
