I have a series called "Painted Light" that I do using a digital back and camera movement. In fact just did a selection of these for the Maternity Center for Texas Children's Hospital. They are soft and natural looking and I don't think I could get this effect in Photoshop. Even if I could, doing that kind of manipulations with software is just against my personal photographic ethics for my own work (ie: software blurring to mimic camera movement). Eleanor
I've experimented some with both techniques--blurring in camera and blurring in Photoshop. For me, at least, the in camera results are better, but they are unpredictable. You have to take many exposures to get one that you like, but when you get a good one, it has a natural-looking quality that I can't duplicate in Photoshop. Given that there are so many people doing various creative things in the digital darkroom, I'm sure there are some photographers who find they get just the look that they like with blurring in Photoshop. This is probably a classic case of "YMMV."