Misha - No no..you don't want insight into the way "I" think. You're just asking for a couple dozen years in therapy gaining that knowledge. :) I also did this simulated DOF too. Dunno why I didn't like it at the time. Hmmmm. Wish I could have opened up a bit more, but was at the max of my lens (was out to 200mm, max apeture 5.6 for my lens). One day maybe I'll be able to afford a nice Sigma 70-210mm f/2.8 or the sweet 120-300mm f/2.8. Of course, lets be honest, I'm really eyeing their new 80-400mm f/4.5-5.6 OS (optical stabilization) lens. :) -=>Donald