Hello TPF, I am stuck here, I recently got a manual focus lens for christmas, now I faintly remember trying to mount it on my D40x body but didnt work so I put it away (what a shame) now I recentl made a discovery and I found the lens. I tried to mount it on my body and it's a snug fit except I get a message on my LCD that says no lens attached. I checked it out its a nikon 70-200mm macro lens. I really want to use this lens but for some reaosn it just wont mount. Any input here would be greatly appreciated. Thanks!