Any idea - AEB is playing up

[Scotty72]

I am not sure if this is:
a) a camera issue;
b) a canon issue; or
c) something weird I have done


At times, when I try to use the AEB (Auto Exposure Bracketing) feature on my 7d. Occasionally, the menu system wont let me set this (that feature is greyed out as though it is not available)

As best I can figure, this happens only when the 24-105L is attached - and only about 50-60% of the time.

I can't figure out another reason that contributes.

It NEVER happens with any other lens - EVER.

Is there some issue with the lens that may stop the camera from going into AEB mode - I never knew it mattered as AEB varies the shutter speed (nothing to do with the lens).

Other than this, the lens is working perfectly (so far - touches wood)

Any ideas?