5Ds red light blinking in viewfinder

[Markeran]

Hi

Any idea why the redlight (illuminating grid & focusing points) in the viewfinder of my 5Ds would be constantly blinking when I set the AI SERVO mode? - This does not happen in the ONE SHOT or AI FOCUS modes.

In all modes however, the focusing red light(s) never light up.

I am not so sure but I think that this problem arose when I updated recently the firmware to 1.1.1.

Anyone with a 5Ds encountering the same problem?

[Tim]

Hello Markeran, 

Typically blinking AF points are horizontal-line or vertical-line sensitive.  This is the case when pressing the AF point selection button.  

[Markeran]

Hi Tim

Sorry but I do not understand your reply.

Could you be more precise?

Regards