Auto bracketing error after customizing buttons - EOS 5D Mark IV

[westmanl]

Hello!

I work as a real estate photographer and use auto exposure bracketing (in Manual mode) most of the time when photographing with my EOS 5D Mark IV. When using auto bracketing in M-mode the camera adjusts the shutter speed to take the extra over- and underexposed pictures, keeping the same aperture value.

My problem is that the rubber wheel on the top dial (next to the shutter) on my camera has gotten very worn out and loose since I change shutter speed very often. It should probably be replaced, though first I decided to try switching the settings on the dials in the Custom settings menu, so that I could use the bigger front dial (next to the display) to change shutter speed and the top dial to change the aperture, instead of the other way around. However, when I switch place on the buttons and take images using auto bracketing, the camera changes the APERTURE instead of the shutter speed when taking the over- and underexposed photos, which I really don’t want. Does anyone know what the error might be, and if there is a way to fix it? I have never used any custom settings this way before, so maybe I’m doing something wrong. 

Best regards,

Lina

[p4pictures]

I am a little surprised at the change you have seen with auto exposure bracketing switching to aperture when the dials are switched round. I don't have an EOS 5D Mark IV in my hands any more, but I just tried the same with the EOS 7D Mark II that I do have. When I switched the shutter speed to the dial on the back of the camera and aperture to the main dial by the shutter button there is no difference, the camera still changes the shutter speed when bracketing when using manual exposure mode and a fixed ISO value. I also tried with auto ISO and the aperture and ISO are the same, only the shutter speed changes.

Have you tried leaving the main dial controlling shutter speed, and also have the quick dial on the back control the shutter speed?