I have a Nikon Pronea 6I from years ago, and with it the IX-Nikkor 60-180mm, and the IX-Nikkor 20-60mm. Since these lenses are not compatible with my D60, I was going to sell the Pronea and the lenses on ebay. Well, looking at the sales history of this camera, I would have hard time giving it away. I went into a privately owned local camera shop, who buys and sells used camera gear. I mentioned the Pronea 6I and there was no way he was going to take it, even on a trade in. We start talking lenses, and he says he has a theory, that if you were to dremel down the large plastic ring, you could manually use these lenses on a 35mm Nikon. So, being the do-it-yourself sort of guy, and knowing the stuff I had was either going to sit in a box for eternity, I decided to give this a try, and to my surprise, it actually worked. I didn't think to take before and after photos, so I found an image of the 60-180mm lens on the web as my before... So, here's a quick shot of some really bad dremel work on the lens... I did this with both the 60-180mm, and the 20-60mm, and took another real quick shot of one my kids toys laying around the house with the 20-60mm, and that shot is here... It's obviously only going to work manually, and it won't let you go all the way to say 60 on the 60-180mm. You have to start at about 100mm or so, because the shutter sticks. I would never actually use these lenses for anything, this was more a proof of concept. I'm also nervous about the possibility of hurting the D60 somehow, but there you have it. Me with too much time on my hands tonight, and I thought maybe some of you would find this interesting.