<p>This is the lens that came out just before the D version. The one I have was purchased new probably around the year 91 or 92. I really can't provide anymore specific information. I have the lens in front of me but don't see any serial any other type of ID numbers. When I first had it, it was paired with an F4s. I had purchased from Kirk Photo a collar with a tripod mount that attached the lens to the camera. I've since replaced the F4s with a D7000. Kirk Photo seems to have a lens collar but they emphasize it's for the D version only. Looking at some Q&A's it seems doubtful that it would work on my lens. So my question is, and I know this lens is quite long in the tooth, does a lens collar or any type of support exist for this lens? Note: I checked the Really Right Stuff site and they don't seem to have anything. <br> Thank you.</p>