« on: February 15, 2013, 03:07:44 PM »
For small stuff maybe but to repair expensive, high precision gear at that level I would only trust Canon. Same thing happened to me with the same lens after only owning it for two weeks. Forgot to zip up my back pack style bag. No physical damage but the IS went all wonky. I sent to to Canon with a copy of the bill of sale and a letter explaining what happened. They just charged me for the parts only.