Yes, I know that Canon does not service this antique lens but I have a minor issue that I'm hoping someone here can help me out with. The rubber zoom ring is stretched out and in desperate need of replacement.
I tried to find a replacement zoom ring on eBay and Amazon but can't seem to find one. Is there a current zoom ring that might fit the lens that can be substituted? Any DIY recommendations as I might used slap some gaffer tape?

