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EFS 17-55 USM corner blurriness: experts' opinion needed !

Started Nov 2, 2014 | Questions thread
OP 70d IF Regular Member • Posts: 155
Re: EFS 17-55 USM corner blurriness: experts' opinion needed !

Just another Canon shooter wrote:

In my experience, Canon will only do things that are easy and fast - like electronic adjustments, etc. That is why I am trying to catch problems withing the return period.

Yes, this is decentering. I would try to convince them to send me a replacement. I owned that lens, the corners were not great but nothing like what you showed.

Actually, this is already my second copy of this lens. The first one was worst, and it was on the same corner. I returned it to the seller a few days after my purchase and I got a replacement unit. Although I noticed that the second copy had a sligth corner blurriness at 17 mm, it was much better than the first one. Unfortunately, I did my tests at 17 mm only. Later on, I noticed the problem at 55 mm, but the return period was over. By the way, I don't know if the seller would have accepted another return.

 70d IF's gear list:70d IF's gear list
Pentax K100D Canon EOS 80D Canon EF 85mm F1.8 USM Canon EF-S 17-55mm f/2.8 IS USM Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) +4 more
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