Showing results for 
Show  only  | Search instead for 
Did you mean: 

5dmkiii Confused about AI Servo


Ok, AI Servo mode...selecting a center 5 or 8pt cross type focus on my moving subject. lock focus, why don't the points track the subject outside the middle of the view finder? another words...In all the tutorials I have watched(simulated I think) It shows the the focus points tracking your moving subject all around the view finder.

In the manual it states to manually select a focus point in 61 pt focus mode? If you go to 61 pt focus mode you can then toggle to individual focus points but once again you never see tracking leave that area.. What am I missing folks?






I don't know if I totally understand your question but in AI servo the focus tracking does change and in regular it does not.?.


EOS 1DX and 1D Mk IV and several lenses!


Hi Waytoomuch!


Thanks for posting.


If you are using AF point expansion or selecting a zone in the center, the AF point will not track outside of that expansion area or zone.  To have the AF point track all over the viewfinder area, you need to set the AF Area Selection Mode to [61-point Automatic Selection AF], then set the starting AF point.  To do this:

  1. Press the <AF Point Selection> button.
  2. Press the <M.Fn.> button until [61-point Automatic Selection AF] is selected.
  3. Use the <Multi-Controller> to select the starting AF point.

If you switch the AF Area Selection Mode to [Single-Point AF] and select a point, it will only track on that point.  You must set the AF Area Selection Mode to [61-point Automatic Selection AF], then use the <Multi-Controller> to set the starting point to accomplish what you are trying to do.


Also, keep in mind that focus must be achieved at the manually selected starting point before it will track elsewhere.


This didn't answer your question? Find more help at Contact Us.


Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

Thank you so much. Nowhere is that spelled out as the way you just explained it. I will now try this tomorrow night during the game!

The info on this publication seems pretty good. Has lots of examples rather than just settings. I'm thinking about this camera and realize that there is somewhat of a learning curve; an intimidating curve if us too!

so, I still can not select a starting point in 61 automatic selection AF. in all other modes i CAN SELECT ZONE aF AND POINT af BUT IN 61 POINT AS SOON AS YOU SELECT THAT POINT THE OTHER BOXES NEVER FOLLOW MY SUBJECT! I even called canon and the dude could not help or did not know how? If you do i would be more then happy to talk to you if you wouldn't mind?
08/18/2023: Canon EOS R5 C training series is released.

07/31/2023: New firmware updates are available.

CR-N700 - Version 1.2.0

CR-N500 - Version 1.3.0

CR-N300 - Version 1.3.0

CR-X300 - Version 1.1.0

06/30/2023: New firmware version is available for EOS-R5 C

05/31/2023: New firmware updates are available.

EOS R6 Mark II - Version 1.1.2

EOS R6 - Version 1.8.2

EOS R7 - Version 1.3.1

05/18/2023: New firmware updates are available.

EOS Rebel T100 - Version 1.1.0

EOS Rebel T7 - Version 1.2.0

EOS 5D Mark IV - Version 1.4.0

EOS 6D Mark II - Version 1.2.0

PowerShot Elph 360HS - Version

PowerShot SX420 IS - Version

PowerShot 620 HS - Version

PowerShot SX720 HS - Version

PowerShot G1X Mark III - Version

PowerShot G7X Mark II - Version

PowerShot G9X Mark II - Version


04/20/2023: New firmware version 1.4.1 is available for EOS R3

03/30/2023: New firmware updates are available.

EOS R5 - Version 1.8.1

EOS 1DX Mark III- Version 1.7.1

Speedlite EL-1 - Version 1.0.2

03/30/2023: Product Advisory for EF50 F1.2 L USM

03/30/2023: Product Advisory for EOS R10

02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5