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RF 100-400 vs EF 400 5.6 Birds

Started 3 months ago | Discussions thread
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BirdnSurf
BirdnSurf Forum Member • Posts: 58
RF 100-400 vs EF 400 5.6 Birds

I'm into bird photography and hoping to get one of these lenses and an R7.

I haven't seen these lenses compared but I've researched them thoroughly for my purpose.

It seems like the biggest drawbacks to the 100-400 are the slow aperture and lack of weather sealing. It's easier to point out the drawbacks to 400, close focusing, lack of IS and a bit of extra weight.

That said, the faster aperture might be worth the drawbacks if the focusing speed is comparable.

Does anyone have experience with these two lenses for bird photography?

Thanks!

 BirdnSurf's gear list:BirdnSurf's gear list
Sony RX10 IV
Canon EOS R7
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