I dropped my EF 100 f/2.8 macro back in March. Afterwards the rear element was VERY loose (though nothing was physically broken). So I sent it in to Canon.
Not only did they fix it for free (it was still under warranty but they didn't have to fix a dropped lens for free) but I would swear that the lens came back focusing much more accurately than when it was new. So I guess what I'm saying is that your lens could come back better than ever. Good luck.

Total cost was 564$ including 15$ for shipping it back. My home insurance is going to cover it for me, led to increase of 10$ on my insurance, but thats allright.


