1D X, 500mm f4 L IS and 25mm extension tube:
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The 1Dx fell into a coma.
I have only an older Mark II 2x extender, which I sometimes use with my 180mm. I have not had any problems with that combination on my 1DX. I can't say, if there is any difference in the Mark III extenders that may not be perfectly matched to such an old lens design as the 180mm. I am not sure, but since you have found no issues combining the new extender with newer lenses or combining an older extender with the same lens and body there may be an issue here with gear not being as optimized for each other as you would wish for.I don't think it's a wish at all. I think it's an expectation when you are dealing with Canon's "Flagship" camera. If two of their lower tier cameras can work properly and as expected why can't their top tier camera do the same? Clearly Canon hasn't thouroughly tested the 1D X and some things have slipped through the cracks.
Yes, of course.
If you tell me how long you have the shut off set for I'll try it on mine!
Also note if the power switch was turned to On or Lock, before power off. It shouldn't matter, if you're using the shutter button to wake up the camera, but if it's a bug then we need to check both.
I wonder if it's related to the AFMA bug? Do you have AFMA in conjunction with AF points linked to orientation?
How long do you guys have the Auto Power Off set for? Why don't you just set the timer longer for now.Yes that is the obvious workaround. Set the Auto Power Off to a longer time or completely disable it at least with that lens Extender combination.
I have all of my cameras set for 15 minutes, so I haven't noticed any problems. The batteries last very long regardless.
However, I agree it should wake up with the shutter press.