Rumors > Third Party Manufacturers
5Dmk3 doesnt play with kenko teleconverters
wickidwombat:
I just got back from 3 weeks in china and got my replacement 5d3 this morning and tested it briefly and all the problems i had with my previous model are no longer there, it works with my kenko TC no problems now
I've only tested it on my 70-200 so far but focusing seems accurate and fast. So far looking good, I'm looking forward to testing it out properly and seeing how it goes :D
There was definately something not right with that other body though that this one is pretty much spot on right out the box. glad i exchanged it
nickstefani:
bcherincoff, I have a question about your 5D III and the Sigma 12-24. Is it the 1st gen 12-24? And if so does the camera communicate with it ok for aperture and autofocus? And the 1st gen has a gel holder on the rear of the lens?
Thanks
Nick
bchernicoff:
--- Quote from: nickstefani on May 15, 2012, 06:04:37 PM ---bcherincoff, I have a question about your 5D III and the Sigma 12-24. Is it the 1st gen 12-24? And if so does the camera communicate with it ok for aperture and autofocus? And the 1st gen has a gel holder on the rear of the lens?
--- End quote ---
It's the first gen version. Aperture and autofocus worked. It does have a gel holder on the rear. Again, I only tested it with the extender just for the sake of seeing if it worked. Why someone would want to use an extender on a lens that is purposely made for extreme wide angle is beyond me.
mikiort:
It seams to be that I have the same problem with my 5D MkIII and Kenko Teleplus PRO 300 DGX 1.4x AF Teleconverter.
I successfully used it previously with Canon EF300 f/4 L IS and EF135 f/2 L on my 7D body.
Now the brand new 5D MkIII refuses to work with the same converter and the same lenses.
Is there any solution to the problem?
The same lenses and 5D MkIII body of cause working with the original Canon EF 1.4x III converter.
bchernicoff:
The situation isn't straightforward. After reporting perfect success with this extender I suddenly had trouble Memorial Day Weekend. Mounted on my 70-200 II it was working and then it wasn't. It would lock up the body when using any of my lenses. Then Canon updated firmware for the 5D III to address an issue with Canon extenders. This resolved my issue with this extender for every lens I have except my 400mm 2.8 L II (non-IS).
I really have no idea why it suddenly stopped working, but the firmware mostly resolved it.
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