In Poser 5 the Firefly rendering engine has a setting for depth of field, which emulates the effect of a camera lens. With a wide lens aperture, some parts of a scene are in focus, some not, depending on how close they are to the distnce the lens is focused to. (Also depends on stuff like final image size, but if you want to know the details, go to the Photography forum.) My problem is figuring out how to set the focusing distance. It slows down rendering, so trial-end-error is hardly practical, though it may help get a feel for what the options can do. So far, the best method I can come up with is to put a dummy object, made invisible for the final render, at some point I want to be in focus, and then apply Pythagoras to the differences in (X,Y,Z) coordinates between the focus target and the camera. Am I missing something in Poser? Incidentally, for some renders I could probably get as good a result just by making a blurred version of the background image.