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Anybody owned, or used the Canon 400mm f/4 DO IS II on....

Started 4 weeks ago | Discussions thread
Marximus
Marximus Regular Member • Posts: 474
Re: Anybody owned, or used the Canon 400mm f/4 DO IS II on....

For max reach, I'd say the 500 without reservation. Even if you put a 2x on it, its maximum aperture is only a third of a stop slower than the bare RF lens at 500. I almost always have a 2x on my 500, and it's plenty sharp enough for me, with good AF. Only you can decide whether that's worth the extra money and weight.

 Marximus's gear list:Marximus's gear list
Canon EOS R5 Canon EOS R6 Canon EF-S 60mm f/2.8 Macro USM Canon Extender EF 1.4x III Canon Extender EF 2x III +10 more
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