Discovered a LCD glitch with the 5D Mark III

This evening I was playing with the custom functions and assigning presets to the custom functions. I noticed when I switch to C2/ C3 which had no preset my LCD turned active. There was no display on, but its definitely active. It blinked sporadically. The only way to stop the blinking is to go in the menu, or press a key that something pops up on the display.

So after playing around some more, I notice this only occurs when I switch to a preset mode that does not have a preset assigned to it.

Can someone confirm this on their camera? turn the mode dial to C 1/ 2 /3 and notice the LCD turning on and blinking, its very dim, but you know its active.

Okay, so apparently if you switch from C1 to C2 and back to C1, the LCD glitches.

Anyone try this?

Just tried, nothing unusual.

Tried resetting the camera/custom functions?

I don't see my screen doing anything weird.

Mine seems fine too. Return it imo.

mine does it too but it goes away after you press the shutter a couple of time...weird. i only noticed it when i tried shooting in a very dimly lite room.

just tried in room lights on and off can't say i noticed anything

The problem seem to go away after I reset the settings. Very strange.

that is strange...but not a reason to return it..lol
most likely some software/firmware glitch that WILL get sorted out IF Canon is aware of the issue..

Good luck!!(wish I could join in the fun with the Mark III... though, I do have a 70-200 IS II in the works.lol)