I've written a few posts here about my experiences with my EFS 17-55 2.8 lens. I bought it 7 years ago. Less than 2 years ago it stopped communicating with my camera. I sent it to Canon service in Costa Mesa CA, after about $300 for repairs and initial shipping it was "fixed".
Immediately after getting the lens back I went on vacation and when processing photos 2 weeks later I found many that were fuzzy. I did tests with the different focus modes on a test target. The photos clearly showed that the multi-zone AF gave much fuzzier results while Live View focusing gave the best results. I sent the photos to Canon and they immediately replied (within 4 hours on the Sunday of Labor Day weekend, which made me think that "Michael" was just a minimum wage off shore call center worker) with a boiler plate email that said the results were normal. I replied back, saying I wasn't satisfied and asked if it could be elevated to someone I could talk to on the phone. They never replied. I emailed the request a second time, no reply.
About 6 weeks ago the recently repaired lens again stopped communicating with my camera, but this time I had a cheap Canon 50mm 1.8 lens available to use. I immediately noticed the huge difference in sharpness with this lens. It was now obvious that my repaired lens was never fully functioning.
I sent the lens back to Canon Service in Costa Mesa with a letter outlining the entire situation. I told them I believed it was clear that their repair was never adequate the first time and stated that I didn't think I should have to pay for a second repair.
I just got an email, they are offering me a 20% discount off their standard repair rate of $219.
I don't have much confidence in this lens or their repair process right now. They are still asking me to pay almost $250 added to the previous repair of almost $300. Will I pay $43 dollars less, and a total of more than $500, and have it break again in 18 months? Will I pay $43 less, and a total of more than $500, and get back a "repaired" lens that still does not function properly? I'm definitely going to call Canon Costa Mesa and talk with someone about this, but how would you reply to this offer?
Edit: I should add that the first time the lens broke I had a 30D, the second time it broke I had a 70D, so it wasn't a camera problem.



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