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Strange issue: Canon EF 70-200mm f/4 L IS USM acts as 85-250mm. How?

Started 8 months ago | Discussions thread
OP Nightly Forum Member • Posts: 68
Re: Strange issue: Canon EF 70-200mm f/4 L IS USM acts as 85-250mm. How?

I doubt the difference in both lenses are -/+2mm. This set of the images had less difference in framing because of distance probably, but still recognizable. I took only 5D with me, so could compare with 24-70 only. I think days ago I compared 24-70mm with 55-250mm with 70D - there was no visible difference in framing - this is how should the lenses behave.

I sent the lens to Canon service to check it. Probably the next week will receive the laboratory results.

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