Rumors > Third Party Manufacturers
5Dmk3 doesnt play with kenko teleconverters
FlowerPhotog:
I apologize, as I gave some mis-information yesterday with my post. I had attached the Kenko 1.4 to my Sigma 150 macro while indoors and did a half-press on the shutter, which did a fast and apparently accurate auto-focus, so I assumed it was working fine, but I didn't actually try to take a picture. Tonight I tried to actually use it outside and it appears to take a picture, but then it locks up the camera, with the only way to get it going again is to remove and then replace the battery. After that exercise I went thru my entire collection of non EF-S lenses and tried to take pictures - this is what I found;
Works: EF 70-300L
EF 70-300 (non-L),
EF 24-105 (kit Lens)
Doesn't work: EF 100 2.8L IS Macro (despite Kenkos reply to wickidwombat that it does)
EF 100 2.0
Sigma 150 2.8 Macro (non-IS model)
Sigma 70 2.8 Macro
All four lens that don't work exhibit the same behavior - it just locks up the camera after one shutter actuation. It never actually takes the picture.
Those four lenses that don't work with the Kenko 1.4 on the 5D Mark III do work with it on my T2i.
I guess the only silver lining for the time being is I will be using it mostly on my 70-300L to get back some of the reach I lost going from the crop sensor to the full frame. Canon's teleconverters won't work on the 70-300L, so at least the Kenko provides some benefit, and so far I'm pretty happy with the IQ.
wickidwombat:
the 3 main lenses I care about it working with are
300 f4L
70-200 f2.8
and
100 f2.8L Macro
I did buy a canon 2x TC so on the 100 f2.8L i can always use that with a 12mm extension tube however my extensiontubes are kenko too.
It would seem that this camera locking up issue is boddy specific though and not common accross all copies
which is a good sign
drjlo:
--- Quote from: FlowerPhotog on April 11, 2012, 08:16:48 PM ---
All four lens that don't work exhibit the same behavior - it just locks up the camera after one shutter actuation. It never actually takes the picture.
--- End quote ---
Yes, that's exactly what happens to my 5D III. I replied to Kenko with list of lenses that did not work, and I just got their reply, which is not encouraging since it does not seem like they even want to look into it any further despite multiple user reports. So far I have not seen 5D III owners who report that ALL their Canon lenses work with Kenko, yet Kenko reports their 5D III body copy works with all the lenses. Hmm, is it possible that Kenko's Japan version of 5D III is fine but U.S. version isn't?
"Dear Sir,
Thank you very much for your reply.
We have checked all lenses you mentioned with Canon 5D Mark 3 and Teleplus PRO300 DGX 1.4x Canon.
And we haven't any problems in these combinations.
Canon 135 f/2L
Canon 85 f/1.2L II
Canon 100 f/2.8 L
Canon 35 f/1.4 L
Yours sincerely,
Kenko International Division"
wickidwombat:
--- Quote from: drjlo on April 11, 2012, 10:45:02 PM ---
--- Quote from: FlowerPhotog on April 11, 2012, 08:16:48 PM ---
All four lens that don't work exhibit the same behavior - it just locks up the camera after one shutter actuation. It never actually takes the picture.
--- End quote ---
Yes, that's exactly what happens to my 5D III. I replied to Kenko with list of lenses that did not work, and I just got their reply, which is not encouraging since it does not seem like they even want to look into it any further despite multiple user reports. So far I have not seen 5D III owners who report that ALL their Canon lenses work with Kenko, yet Kenko reports their 5D III body copy works with all the lenses. Hmm, is it possible that Kenko's Japan version of 5D III is fine but U.S. version isn't?
"Dear Sir,
Thank you very much for your reply.
We have checked all lenses you mentioned with Canon 5D Mark 3 and Teleplus PRO300 DGX 1.4x Canon.
And we haven't any problems in these combinations.
Canon 135 f/2L
Canon 85 f/1.2L II
Canon 100 f/2.8 L
Canon 35 f/1.4 L
Yours sincerely,
Kenko International Division"
--- End quote ---
Mines an australia version well was... I sent it back
sounds like you should consider doing the same mate
how are you finding the AF focus accuracy of your copy BTW?
Old Shooter:
wickid - Did you get a new 5DIII? Is it better than your first copy? Happy with it?
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