Canon UK website confirms: RF70-200mm not compatible with TCs

brad-man

Semi-Reactive Member
Jun 6, 2012
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I guess when Canon decided to make the lens lighter and more compact than its EF counterpart, compatibility with extenders fell by the wayside...
 
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Del Paso

M3 Singlestroke
Aug 9, 2018
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As an old saying goes, you can't have the butter and the money for the butter,(and the milkmaid...).
Due to the short distance from the rear lens-group to the sensor, the new extenders will collide with the RF 70-200's rear lens.
There's a price to pay for compactness, and, maybe, a reason for Canon to develop a non-extending version, as was already suggested.
 

brad-man

Semi-Reactive Member
Jun 6, 2012
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A development announcement is not a release. When an actual product is available, Canon will change it's specs. In the meantime, don't get your panties in a twist.
So you feel that the extender compatibility reference on the Canon UK website was referring to EF extenders? Interesting perspective. You may want to loosen your shorts...
 
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Viggo

EOS 5D SR
Dec 13, 2010
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Of course it is. They would hardly refer to a product that doesn't exist.
That actually makes sense. The new ones haven’t been released and available so saying it’s compatible may cause issues.

why I, at least, thought they weren’t compatible is because the Rear lens element of the RF70-200 is closer to the mount than with the EF version and the fact that those RF extenders sticks out a lot!
 
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unfocused

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Jul 20, 2010
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www.mgordoncommunications.com
That actually makes sense. The new ones haven’t been released and available so saying it’s compatible may cause issues.

why I, at least, thought they weren’t compatible is because the Rear lens element of the RF70-200 is closer to the mount than with the EF version and the fact that those RF extenders sticks out a lot!
It's certainly possible, but I doubt they would make an RF extender that doesn't work with one of the most popular RF telephotos. At any rate, there is no reason for people to think that will be the case until we actually have a product in hand. If that happens, then people are more than welcome to whine. But, it's a bit premature at this point.
 
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brad-man

Semi-Reactive Member
Jun 6, 2012
1,481
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S Florida
That actually makes sense. The new ones haven’t been released and available so saying it’s compatible may cause issues.

why I, at least, thought they weren’t compatible is because the Rear lens element of the RF70-200 is closer to the mount than with the EF version and the fact that those RF extenders sticks out a lot!
Precisely. A quick look at the rear of the 70-200 shows the rear element is nearly flush with the mount. There is nowhere near enough room for the press released photos of the RF extenders to fit.
 

Kit.

EOR R
Apr 25, 2011
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A development announcement is not a release. When an actual product is available, Canon will change it's specs. In the meantime, don't get your panties in a twist.
Do you expect the actual released extenders to be much less protruding than their announcement images show?
 

Proscribo

EOS RP
Jan 21, 2015
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Do you expect the actual released extenders to be much less protruding than their announcement images show?
They obviously have screw-in optics and canon will release two sets, one optimized for big whites, and one for compactness and full compatibility. :LOL:
 

YuengLinger

EOS 5D MK IV
Dec 20, 2012
2,825
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I had a great copy of the ef 70-200mm f/2.8L IS II, plus a 1.4x III. I thought that the combo was pretty poor at 200mm. The same tele worked fine on my 100-400mm, so I assumed it was just the combo. Now all of those have been sold..."Dust in the wind..."