Development announcement for the Canon RF 100-500mm f/4.5-7.1L IS USM is coming alongside the Canon EOS R5

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Wow, power move by Canon to turn the 100-400 into its own competitor to the 150-600mm lenses. Wouldn't be surprised if it's still 5.6 at 400mm and they just simply extended the range to 500mm 7.1. Pretty excellent considering how much I use a 1.4x to get a 560mm f/8, now gets you to 700mm with a 1.4x.
 
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Lots of discussion in the big R5 announcement thread.

Smart money is that this is simply a 100-400 f4-5.6 that tosses in the bonus feature of pulling that front end a hair more to reach 500mm. Should be the same quality as the current, enhanced as RF enables, with a bit of a stretch on the long end for when conditions permit.

$1999?
 
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Lots of discussion in the big R5 announcement thread.

Smart money is that this is simply a 100-400 f4-5.6 that tosses in the bonus feature of pulling that front end a hair more to reach 500mm. Should be the same quality as the current, enhanced as RF enables, with a bit of a stretch on the long end for when conditions permit.

$1999?

The wording in the IBIS section makes it seem that IBIS will only work with RF IS lenses and non-IS lenses, with EF IS lenses it will be likely disabled. If that's the case, add $300 or so to the price.
 
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The wording in the IBIS section makes it seem that IBIS will only work with RF IS lenses and non-IS lenses, with EF IS lenses it will be likely disabled. If that's the case, add $300 or so to the price.

As long as IBIS works with non-IS lenses like my Questar 700mm f8 mirror lenses, I'm OK. And for the non-IS 11-24, etc.

But it may be a tech challenge to get two IS systems to work together and not fight each other when one is a legacy system.
 
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I wouldn't assume that a TC will work with the lens, I'd hope so, but if it uses similar tech to the 70-300mm 4.5-5.6 L to get a more compact lens, the moving rear focus group precludes a TC.

I wonder?

You're right, from the images of the RF teleconverters they clearly won't work with the RF 70-200. The big question is how they'll work with EF lenses and EF-RF adaptors.
 
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