I've been doing digital photography for some time, and though I've done mostly portraiture and macro shots, I'm starting to get into landscape and nature photography. My question is this: I've just run across a photographer I quite like whose images have a very unique feel to them. His web site is Light Travelling - Photography by Joel Koop . I copied a couple of his images into photoshop and was examining them and have discovered that, almost universally, his histograms have a particular shape--essentially a smooth convex slope starting high on the dark end and ending off on the high end. I am wondering how this might be accomplished? Is it a particular shooting technique, or some curves processing afterwards (or something between). I've never had curves look quite this way. Anyhow, I'm looking for some explanation of his technique.