Ok, that's fine. I understand now. In fact, there's a useful application I picked up some time ago, called fcalc. It allows you to input the lens focal length setting and desired depth of field you want, and will tell you the f-stop settings required. Of course, it's designed for normal cameras rather than Poser settings: I just wanted to make sure that I wasn't being completely stupid in trying to use it for my more digital creations. jonthecelt