Canon EOS 5D Mk.4 Manual

							
139
3 Customizing AF Functions N
Enables or disables the EOS-dedicated external Speedlite’s AF-assist 
beam.
ON: Enable
The external Speedlite emits the AF-
assist beam when necessary.
OFF: Disable
The external Speedlite will not emit the 
AF-assist beam. Useful when the AF-
assist beam may disturb others.
IR: IR AF assist beam only
When an external Speedlite is attac hed, only the infrared AF-assist 
beam will be emitted. Useful when you do not want to fire a series of 
small flashes as the AF-assist li ght (Intermittent flash method).
With an EX-series Speedlite equipped with an LED light, the LED 
light will not automatically tu rn on as the AF-assist light.
AF-assist beam firingAF3
If an external Speedlite’s [AF-assist beam firing] Custom Function is set to 
[ Disable ], this function’s setting will be overridden and the AF-assist beam 
will not be emitted. 
						

							
3 Customizing AF Functions N
140
You can set the AF operation charac teristics and shutter-release timing 
for One-Shot AF.
: Focus priority
The picture will not be taken until 
focus is achieved. Useful when you 
want to achieve focus before capturing 
the image.
: Release priority
Priority is given to the timing of shutter 
release instead of achieving focus. 
This gives priority to capturing the 
image rather than achieving precise 
focus.
Note that the picture will be taken 
even if focus has not been 
achieved.
One-Shot AF release priorityAF3 
						

							
141
3 Customizing AF Functions N
If focus cannot be achieved with autofocus, you can have the camera 
keep searching for the precise focus or have it stop searching.
ON: Continue focus search
If focus cannot be achieved with 
autofocus, the lens is driven to search 
for the precise focus.
OFF: Stop focus search
If autofocus starts and the focus is far 
off or if focus cannot be achieved, the 
lens drive will not be performed. This 
prevents the lens from becoming 
grossly out of focus due to the focus 
search drive.
24
Lens drive when AF impossibleAF4
When focus search drive is performed  using a super telephoto lenses or 
other lenses with wide focusing drive ranges, the lens can become grossly 
out of focus and it may take more time to achieve focus next time. Setting 
[ Stop focus search ] is recommended. 
						

							
3 Customizing AF Functions N
142
You can change the number of manually selectable AF points. With 
Zone AF, Large Zone AF, or Automatic selection AF set, AF will be 
performed with the selected AF area selection mode (Zone AF, Large 
Zone AF, or Automatic selection AF) regardless of the [ Selectable AF 
point ] setting.
: All points
All AF points will be manually 
selectable.
: Only cross-type AF points
Only the cross-type AF points will be 
manually selectable. The number of 
selectable AF points will vary 
depending on the lens used.
: 15 points
Fifteen major AF points will be 
manually selectable.
: 9 points 
Nine major AF points will be manually 
selectable.
Selectable AF pointAF4
With a lens in groups G to K (p.118-121), the number of manually selectable 
AF points will be lower.
 Even with settings other than [ All points], AF point expansion (manual 
selection  ), AF point expansion (manual selection, surrounding points), 
Zone AF, and Large Zone AF are still possible.
  When you press the < S> button, the AF points that are not manually 
selectable will not be displayed in the viewfinder. 
						

							
143
3 Customizing AF Functions N
You can limit the selectable AF area selection modes to suit your 
shooting preferences. Select the desired selection mode and press 
 to add a checkmark [ X]. Then select [ OK] to register the setting.
The AF area selection modes are explained on pages 109-111.
: Manual select.:Spot AF
: Manual selection:1 pt AF
: Expand AF area:
: Expand AF area:Surround
: Manual select.:Zone AF
:
 Manual select.:Large Zone AF
: Auto selection AF
Select AF area selection modeAF4
  The [ X] mark cannot be removed from [ Manual selection:1 pt AF].
  If the attached lens belongs to group I, J or K, you cannot use certain AF 
area selection modes even if you add a [ X] in [ Select AF area selec. 
mode ] (p.119 - 121). 
						

							
3 Customizing AF Functions N
144
You can set the method for changing the AF area selection mode.
:S 9 M-Fn button
After you press the < S> button, 
pressing the < p> (AF area selection) 
button or < B> button changes the 
AF area selection mode.
: S 9 Main Dial
After you press the < S> button, 
pressing the < p> (AF area selection) 
button or turning the < 6> dial 
changes the AF area selection mode.
You can set the AF point or the AF area selection mode + AF point 
separately for vertical sh ooting and horizontal shooting.
: Same for both vert/horiz
The same AF area selection mode 
and manually-selected AF point (or 
zone) are used for both vertical 
shooting and horizontal shooting.
AF area selection methodAF4
Orientation linked AF pointAF4
When [S9Main Dial ] is set, use the < 9> to move the AF point 
horizontally. 
						

							
145
3 Customizing AF Functions N
: Separate AF pts: Area+pt
The AF area selection mode and AF point (or zone) can be set 
separately for each camera orientati on (1. Horizontal, 2. Vertical with 
the camera grip at the top, 3. Vertical with the camera grip at the 
bottom).
When you manually select the AF area selection mode and AF point 
(or zone) for each of the three camera orientations, they will be 
registered for the respective or ientation. Whenever you change the 
camera orientation during shooting, the camera will switch to the AF 
area selection mode and manually-selected AF point (or zone) set for 
that orientation.
: Separate AF pts: Pt only
The AF point can be set separately for each camera orientation (1. 
Horizontal, 2. Vertical with the camera grip at the top, 3. Vertical with 
the camera grip at the bottom). While using the same AF area 
selection mode, the AF point will  switch automatically for the 
respective camera orientation.
When you manually select the AF point for each of the three camera 
orientations, it will be registered fo r the respective orientation. During 
shooting, the AF point will switch to the manually-selected one 
depending on the camera orientation. Even if you change the AF 
area selection mode to Manual select.:Spot AF, Manual selection:1 pt 
AF, Expand AF area: , or Expand AF area: Surround, the AF point 
set for the respective orientation will be retained.
If you change the AF area selection mode to Zone AF or Large Zone 
AF, the zone will switch to th e manually-selected one for the 
respective camera orientation.
  If you clear the camera settings to  their defaults (p.77), the setting will be 
[ Same for both vert/horiz ]. Also, your settings for the three camera 
orientations (1, 2 and 3) will be cleared and all three will revert to Single-
point AF with the center AF point selected.
  If you set this and later attach a lens from a different AF group (p.115-
121, particularly group I, J, or K), the setting may be cleared. 
						

							
3 Customizing AF Functions N
146
You can set the AI Servo AF’s starting AF point for when the AF area 
selection mode is set to Auto selection AF.
: Initial   AF pt selected
AI Servo AF will start with the 
manually-selected AF point when the 
AF operation is set to AI Servo AF and 
the AF area selection mode is set to 
Auto selection AF.
: Manual   AF pt
If you switch from Manual select.:Spot AF, Manual selection:1 pt AF, 
Expand AF area: , or Expand AF area:Surround to Auto selection 
AF, AI Servo AF will start with the AF point that was manually 
selected before the switch. Useful if you want AI Servo AF to start 
with the AF point that was selected before the AF area selection 
mode was switched to Auto selection AF.
After setting the AF area selection mode to Auto selection AF with the 
[8 3: Custom Controls ] menu’s [Metering and AF start ] (p.500), 
[ Switch to registered AF func. ] (p.502) or [Register/recall 
shooting func ] (p.508), during shooting with Manual select: Spot AF, 
Manual selection: 1 pt AF, Expand AF area: , or Expand AF area: 
Surround, you can press the assigned button to start shooting with 
Auto selection AF set for the AI Servo AF using the last used AF point 
as the initial AF point.
AUTO: Auto
The AF point which AI Servo AF starts  with is set automatically to suit 
the shooting conditions.
 Initial AF Point,   AI Servo AFAF4
When [ Manual  AF pt] is set, AI Servo AF  will start with the zone 
that corresponds to the manually-selec ted AF point even if you switch AF 
area selection mode to Zone AF or Large Zone AF. 
						

							
147
3 Customizing AF Functions N
EOS iTR* AF performs autofocus  by recognizing faces and subject 
colors. EOS iTR AF works when the AF area selection mode is set to 
Zone AF, Large Zone AF, or Automatic selection AF.
* intelligent Tracking and Recognition: a fu nction that identifies the subject with 
the metering sensor in order for the AF points to track it.
u : EOS iTR AF (Face priority)
The AF point is automatically selected 
based not only on AF information, but 
also the human face and the subject’s 
color information.
With AI Servo AF, the subject is tr acked while giving higher priority to 
using face information than with the [ EOS iTR AF] setting. This makes it 
easier to keep track of the subjec t than when only AF information is 
available.
In One-Shot AF mode, EOS iTR AF makes focusing on human faces 
easier, so you can shoot while  concentrating on the composition.
ON: EOS iTR AF
The AF point is automatically selected based not only on AF 
information, but also the human face and the subject’s color 
information. With AI Servo AF, the subject is tracked giving weight to the 
information not only on the face information but also on where (AF 
point) the focus was first achieved.  The One-Shot AF operation will be 
the same as with the [ EOS iTR AF (Face priority) ] setting.
OFF: Disable
AF points are automatically selected based only on AF information. 
(The AF does not use the face information or the subject’s color 
information.)
Auto AF point selection: EOS iTR AFAF4 
						

							
3 Customizing AF Functions N
148
You can set either to stop the selection at the outer edge or it can cycle 
around to the opposite side in AF point selection.
: Stops at AF area edges
Useful if you often use an AF point 
along the edge.
: Continuous
Instead of stopping at the outer edge, 
the selection of AF point continues to 
the opposite side.
25
AF point selection movementAF5
 If [EOS iTR AF (Face priority) ] or [EOS iTR AF ] is set, the camera may 
take longer to focus than when [ Disable] is set.
  Even if you set [ EOS iTR AF (Face priority) ] or [EOS iTR AF ], the 
expected effect may not be obtained depending on the shooting 
conditions and subject.
  Under light so low that the EOS-dedicated, external Speedlite emits the 
AF-assist beam automatically, AF points are selected automatically 
based only on AF information.
  Face detection may not work if the face is small or under low-light 
conditions.
With [ 24: Initial AF pt,   AI Servo AF ] set to [Initial  AF pt 
selected ], the above setting will also work when you are selecting the initial 
AF point for AI Servo AF.