400 L 5.6 repair
I have a Canon 400L 5.6 that seems to not be focusing accurately lately, so I went to the Canon webpage to get the address of the repair facility. If you haven't done this yourself, Canon askes you what you specifically want to have repaired. When I select my lens, it says that there is no repair facility for it. Has anyone had this lens serviced in the recent past? I hope they will still service it.