Hi all,


I was recently cleaning my EF-S 10-22 and I spotted a foreign object (of non-trivial size too!) right underneath the front element (or so it seems, it's definitely not on the surface). I got in touch with Canon and they gave me instructions on how to send it over to them for cleaning (to their Jamesburg center).


Any advice on what to look out for during the process? Does anyone have any experience on how long they will take to send it back and how much it will cost?


Yes, I will pack it really well.


Thanks!


Tony