I picked up a Kodak Duaflex II camera at an antique store this weekend. I’m going to use to it do some through the viewfinder shots with the D70. The idea is that you take a photo of the Duaflex viewfinder with the SLR camera, thereby picking up all the spots, scratches, and curves of the old lens. A lens hood is required to block unwanted light reflections. Here’s a tutorial describing the process. Of course, it was after I bought the Duaflex that I discovered the need for a different lens on the SLR to make it work properly. We’ll see if the 50 mm lens at home works. Some results soon. Hopefully.