Okay I'm a complete newb to HDR. My understanding is that I have to have at least three bracketed shots of the same image to get the "raw materials" I need to merge to get a HDR image. Next time out I plan on doing just that when I shoot. I use Aperture and I have just downloaded the Photomatix HDR plug-in for Aperture. Now, to my first question. Can I, in Aperture, take an old photo I like, create a couple of duplicate images in Aperture and then change the exposures on these duplicate images to, in effect, artificially create bracketed images that can be used to make a HDR image? Like I said, I'm a complete newb to HDR and maybe this is a stupid question but I thought it might be a way to at least experiment with HDR until I get some true bracketed images to play with.