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Change the level of “Accelerate / decelerate Tracking” and “AF point auto switching” 
to appropriate for shooting result.

Tip for AF setting

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AF pt auto switching characteristics

AF Configuration Tool [Parameters]

Set how rapidly the AF point switches to a new AF point 

for moving subjects

[+1/+2] setting is most effective for sports with lots of movement where the subject can 

easily move out of the selected AF point

The [AF pt auto switching] parameter is used 
for setting characteristics of AF point switching 
when the subject has a lot of movements. This 
parameter is only for switching between 
multiple AF points, so it is unavailable when 
using AF area selection modes [Single-point 
Spot AF] and [Single-point AF]. The [0] setting is 
a standard setting for moderate switching of AF 
points. The [+1/+2] settings are used when 
shooting subjects with erratic movement which 

could happen in any directions. When a 
manually selected AF point (AF point being 
focused during Zone AF) leaves the subject, it 
will rapidly switch to surrounding AF points to 
capture the subject. Use the [+] setting when 
you want the camera to automatically decide 
(switch) to use a new AF point, and the [0] 
setting is used when you want to place 
emphasis on manually selected AF points to 
track the subject. 

[0]

[+1]

Examples where [0] is most effective, Sports with comparatively big 
movements, and are not very fast

Examples where [+] is effective, fast moving sports with big movements, 
where the AF points can lose the subject easily

Example of a golf 
bunker shot. The 
[ 0 ]   s e t t i n g   i s 
r e c o m m e n d e d 
w h e n  s h o o t i n g 
subjec t s that do 
not move signifi-
cantly.

A rhythmic gymnast 
s h o w in g l ot s of 
movements in all 
directions. Use the 
[ +1]   s e t t i n g   i n 
order to capture 
the movement by 
taking advantage 
of rapid shifting 
AF points.

“Accelerate / decelerate Tracking” and “AF point auto switching” are absolutely some part of Camera’s automatic 
functions.  Therefore it is not always possible that these automatic functions reflect 100% of your intended idea. If 
you feel uncomfortable with shooting result, try to change the effect level of their functions.

Blue color of focus point is for explanation only, and actually there is no blue indication available.

Choose any of  
[Case] and push 

button for AF 

pt auto switching, 
then adjust level 
w i t h

5

 

button.

Summary of Contents for EOS 5D Mark III

Page 1: ...AF Setting Guidebook Detailed explanations of how to use the various high precision AF features...

Page 2: ...ement of cross type points used by the F 5 6 lenses Setting the AF Shutter release Characteristics 40 AF operation and shutter release timing settings Utilizing the AF 42 AF points can be set to switc...

Page 3: ...rvo Settings related to the camera priorities when using AI Servo AF The AF 2 tab includes settings related to cameras priority concerning shutter release timing when using AI Servo AF AI Servo 1st im...

Page 4: ...ets to match the characteristics of the type of subject and its movement and the shooting conditions can be selected from Case 1 Case 6 By simply selecting one of these cases settings for the AI Servo...

Page 5: ...ent sudden changes in speed and interruptions by obstacles AI Servo AF III overcomes these and is able to capture the subject Case 1 is the recommend setting to start shooting with Case 1 will provide...

Page 6: ...side to side movement The subject will be tracked even when they move away from the AF points Case 2 is an effective setting for shooting fast moving subjects when they move away from the selected AF...

Page 7: ...ons this setting can be extremely effective is when switching between different subjects you want to shoot for example at the start of a bicycle road race when you want to shoot continuously and switc...

Page 8: ...ons and it can be difficult for the AF system to judge accurately In these situations Case 4 is most effective With the Accelerate decelerate Tracking parameter set to 1 the AI Servo AF will work to f...

Page 9: ...atically switches to other AF points that contain the subject As a result even when the subject continuously leaves the selected AF point it is possible to increase the ratio of photos that are in foc...

Page 10: ...Therefore Case 6 is an effective setting for subjects that stop and start suddenly but also have erratic movement which could happen in any direction it works during Auto selection 61 point AF Zone AF...

Page 11: ...he Responsive 1 2 setting determines that subjects that come into the AF point are new subjects to be focused and quickly focuses It is also effective when you want to quickly focus on subjects that a...

Page 12: ...us accuracy Other parameters are the same so first try shooting with default settings then increase the setting to 1 and then 2 settings when more effective settings are desired Examples where the 0 s...

Page 13: ...subject Use the setting when you want the camera to automatically decide switch to use a new AF point and the 0 setting is used when you want to place emphasis on manually selected AF points to track...

Page 14: ...he camera selects and focuses auto matically Zone AF 61 point automatic selection AF Using only one AF point Press the S button How to set the AF area selection mode Using multiple AF points zone The...

Page 15: ...spot AF mode can be used to focus on a small area of the subject This option makes it possible to focus on the exact area even when there is an obstacle near the area you want to focus on A common ex...

Page 16: ...shooting subjects which might be difficult to determine movement select surrounding mode and when you want to focus on the area the covered by central manually selected AF point best to select the Up...

Page 17: ...ne focusing zones can be selected and the AF point is automatically selected from within that zone Zone AF differs from AF point expansion with it s manually selected AF point which AF tracking is bas...

Page 18: ...t position is selected for Single Point AF and then A F area is s witched to 61 Point Automatic Selection AF When using Auto selection of 61 AF points during AI Servo AF focusing will start from the m...

Page 19: ...II USM The colored AF points are for illustrative purpose only This does not represent the actual viewfinder display Up to 41 point cross type AF with f 4 lenses enabling superior tracking performance...

Page 20: ...ke use of the central 21 point cross type AF EF70 200mm f 4L IS USM EF100 400mm f 4 5 5 6L IS USM EF 17 40mm f 4 L USM EF70 300mm f 4 5 6L IS USM In Group C 41 point cross type AF points can be used w...

Page 21: ...t to shoot with a fixed interval between photos Shooting speed priority This setting gives priority to focusing on a subject and it cannot capture an image unless it is in focus It is recommended when...

Page 22: ...s shot was taken with the orientation option set so that when in the horizontal position the central AF point was set but when the grip is at the top in a vertical position the AF point is at the bott...

Page 23: ...ntal as well as the remembered AF point for orientation S h o o t i n g t h e s i d e to s i d e movement of tennis strokes After photographing the player positioned to the right side with a manually...

Page 24: ...n as they approach You can leave AF point selection up to the camera and concentrate on framing as you shoot From AF point expansion to 61 point automatic selection AF Buttons that can be assigned to...

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