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Canon EFs 18-135 mm photos not sharp on edges?

Started Nov 19, 2015 | Questions thread
R2D2 Forum Pro • Posts: 26,551
Re: Canon EFs 18-135 mm photos not sharp on edges?

figosv wrote:

Hi! Thanks for your answer. No filter was used in this picture. I was reading it might be because of discentered lens... do you think that would make sense as a cause of this type of images?

From your sample, it actually didn't look (technically) decentered to me, since the distortion was pretty even all around.  It looks more like bad element alignment, or even a bad element.  Either way, it's completely abnormal.  Hope Canon can get it sorted.

R2

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