As onslow stated taking multiple shots and blending them together in photomatics is one way of doing it. Another way to do this is to take the image in raw. I use a program called Raw Shooter Essentials 2006. In this program you can open your raw image then save the image with the original settings to a jpeg file. Next you can go back to the raw file and adjust your exposure compensation up to +3, save it then adjust it down to -3. Now you can take these 3 images and make your hdri