EF 24-105mm f/4L - Wrong Lens ID reported to camera

[photo_guy5]

Hello,

I believe my lens is reporting "24-105mm" to my 5D mk III instead of the expected "Canon EF 24-105mm f/4L IS USM"

Thus, the in-camera Lens aberration correction is not available.

Also, DPP 4.19.30.0 reports Lens data:  Not Available.

Please note that my 50mm lens works correctly with these features and I successfully used the EOS lens registration utility, etc.  I've downloaded the lens profiles in DPP..  I've done all that.

Yes, this is on a full size RAW file. 

Help?  Anyone seen this before?

[Peter]

Perhaps a broken flex cable.

[photo_guy5]

Yeah, I was thinking that too..  Bummer.

Interesting that it still communicates other relevant data to the camera though.

[Peter]

What if you unmount and mount the lens at different focal lengths?

[photo_guy5]

Interesting idea.  

I mounted the lens at 105mm with the barrel fully extended and took two photos at different focal lengths using remote shooting in DPP.

They both correctly identify the focal length - but the lens is still shown as "24-105mm"

[photo_guy5 · Accepted solution]

Took the lens to the local camera shop today and tried a different copy of the same lens.
Other 24-105 lens works correctly.

Lens in question also shows the "24-105mm" lens info on a different camera.

At this point, I'm going to sell the thing & buy a different one.
I think that the possible ribbon/flex cable flakiness is the most plausible answer.  

Thanks for the help!

[photo_guy5]

This forum is confusing in the order of replies.. 
My copy of the lens showed "24-105mm" on a different camera today.
The other copy of the lens showed the correct "EF 24-105mm f/4L IS USM" on my camera.

😕

[Peter]

You can change the order in the settings. I did for desktop use.

Glad you found out that the lens is the problem and not the camera.