The Canon 100-400 is a f/5.6-8 - Yuck

Started 3 months ago | Discussions thread
Freedolin Contributing Member • Posts: 538
Re: Diffraction Myth - The Canon 100-400 is a f/5.6-8 - Yuck

Diffraction is seldom an issue for the viewer of our images, IMHO.

I didn't claim it to be a visible issue. Diffraction is not a myth, though, but a physical fact. It reduces the maximum resolution possible on the mentioned bodies (f/5.6 does already, actually, even though to a really small extent). The context was why Jeff (and others, including myself) would prefer higher specs over a theoretical f/something-6.3 zoom. Diffraction is one of the reasons. Not the main reason (at least for me), but one of them.

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