Thank you for your comments Chef. I hope you can find one. You will eventually. What may be happening with it is that they found some a while ago with a spacer left out of some copys of the lens which caused focus issues. They identified it and probably checked their manufacturing process to be sure it does not happen again so that may have slowed them down on production for a while. It also seems to just be (justifyably in my opinion) in high demand.