I decided to try out my K1 ring with my D70 and kit lens just for kicks. In case you don't know about this setup, the K1 ring is a very thin extension tube for wide angle lenses. Since it transmits no lens info to the camera it renders my 18-70 as a manual lens. Also, since it's a G lens that means I'm stuck with minimum aperture, f22. That's OK though since it's gonna be a macro shot and DOF is hard to come by. Everything seems to mount OK with reasonable clearance between contacts on the camera, lens and the K1 ring itself. I was afraid I'd have to modify my K1 ring somehow, but it doesn't appear to be necessary. (However, you take full responsibility if you try it and it breaks something on your lens or camera!) A quick test showed me that the area of focus is from about 3/4" in front of the lens to about 1 1/4" at minimum focus; about 1" to 2" at infinity focus. This lens isn't known for it's straight lines anyway...but they really distort at this magnification. Also C.A. was pretty extreme. In photoshop CS camera raw I moved both sliders to +100 to limit it somewhat! All said, it should make for some interesting closeups.