Patent: Canon RF mount Big White Lenses

risto0

EOS M50
May 27, 2013
29
25
Estonia & Finland
www.ristohunt.eu
I had a hope Canon will do a mount conversion service on the EF 600mm f/4L IS USM III and EF 400mm f/2.8L IS III, but if they are going to introduce new lens probably they are not going to do mount conversion on the EF version
why would you prefer to mount convert your lens? Isn't it so that one day when you decide to sell your lens, there are more potential buyers for EF than for RF mount because EF can be adapted to other systems as well? Wouldn't it more beneficial to purchase EF-RF adapter and leave it to the lens ( = more options in future)
 

rawshooter

I'm New Here
Dec 19, 2014
14
0
Wow the difference between the first 400 2.8 IS and the III is 2.530g. That's almost half the weight. Yea if that drops the used prices I'll upgrade. :D
 

Mr Majestyk

EOS RP
Feb 20, 2016
419
276
Australia
I'm would be disappointed if the 300 weighs in at an more than 2kg and the 500 2.5kg. If they can reduce the weight in line with the EF 400 and 600 vIII I'll eventually swap both my older 300 v1 and 500 vII.
 

Fischer

EOS RP
Mar 17, 2020
301
215
Yes! Yes! Yes! RF 300mm f/2.8 - bring it on. I'm ready to preorder. It'll probably be an eye-watering 7.500$ - but its my biggest yearning having switched to Canon mirrorless. :love:
 
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SwissFrank

from EOS 1N to R
Dec 9, 2018
616
349
Fair enough, we all love the 150mm aperture series but this time around I want not only the 800/5.6 and 1200/8, but I also want a 300/2, 200/1.4, and 135/1.
 

Antono Refa

EOS R
Mar 26, 2014
1,326
434