Marketed October 2005
#97011506 after repair by Canon 12/29/2010 #473084 UU0304
Purchased used on eBay 12/2/2006
It failed to operate December 17, 2010 causing a camera error 01. I cleaned the lens contacts and that did not fix the problem. When I looked through the lens I noticed the aperture was not fully open. I tried the lens on another camera and had the same failure. I then went to the Canon website and initiated a repair request.
Received email from Canon on 12/22/2010 with an estimate of $203.56 to replace the lens mount.
Received Error 01 12/29/2017. Sent to Canon for repair on 2/5/2018. Received flat rate repair estimate of $344.30 on 2/8/2018. Contact of the power diaphram assembly was faulty and was replaced along with the rubber mount, L indicator ring and straight guide keys. Lens focus was adjusted, checked, cleaned and lubricated. Received from Canon 2/13/2018.