Hi all, to be open I guess I have read here a kind of instruction quite some time ago but I cannot find it anymore. Maybe someone can provide the link or give me some advice. This is my problem: I own an FDn 35mm f2.0; the focus ring is a little loose. When focussing, I can juggle it about 2mm before the focus really changes. The juggling is only in the direction of its normal turning. This problem is not new and I did not care too much so far. But very often I have taken pictures in low light recently, and now this little juggling gets on my nerves when it comes to exact focussing. Hope someone of you specialists knows how to solve this problem. Cheers+Thanks, Ernst.