Dear all, I have accidentally dropped my wife canon lens recently, and now the auto focus is not working anymore, may I know any other repair shop except cannon SC? pls help
Sounds like the USM is gone. Repair is not cheap and Canon does not officially sell such spare parts to third parties or end users.
Maybe you want to consider getting her the newer 10-18 STM version?
Another option: there are several offers in the Classifieds section.