Found a Kenlock mc-tor 28-85mm 1:3.5 lense in a charity shop. It looks to be in mint condition, no fungus or spots. Does anyone know anything about such a lense? I have googled it, but all I have found is info on a different, automatic lense. I can get it for ca. 6 pounds - do you think it is worth it? Any advice would be greatly appreciated!