But this doesn't stop me from conducting experiments. The spinning disk really is good for a nicer image. And the distance from lens to ground glass matte side was about 40mm. That's 6.5mm shorter than advertised for the Nikon F mounts. Maybe I'm doing something wrong? Fortunately its all adjustable. (Update: I was being silly measuring from the back of the lens to the ground glass. 46.5mm is measured from the F mount to the matte side of the ground glass. So my flange focal length to focal plane is really 46.5mm give or take!)
The spinner is half-built. I have to look for Macro lenses to help the camcorder out. At first I thought to just go out and buy 28mm close-up (I don't mind chromatic aberation at this point). But then I thought that a macro lens like any other magnifier will look warped unless I get a bigger lens. I don't know if that's right but it probably won't hurt. At least I hope not.