Well, after a bit of searching for that "Jewel" I found two of them!! One is A Vivitar 35-105 with a constant 3.5, it's also 72mm! The other is a Nikon Series E 36-72 with a constant 3.5 They are on order right now, so I haven't had chance to play yet. Has anyone used either of these lenses? I'm thinking they may be a useful manual focus for the D200.