I have just received word from a Nikon repair shop that they are not interested in having a look at my 105/1.8 Ais since there are no parts available. The problem is that the focus ring is no longer connected to the focusing mechansim. Focusing worked but was a bit stiff so I exercised it a bit back and forth when it became loose. Just wondering if anything can be done or if it is a lost cause. I would hate throwing it away.