Canon Camera Eos 5d Mark Iii User Manual

91
3 Selecting AI Servo AF Characteristics (For a Subject) N
 Accel./decel. tracking
This sets the tracking sensitivity for 
moving subjects whose speed can 
suddenly change dramatically by starting 
or stopping suddenly, etc.
[0] Suited for subjects that move at a fixed speed.
[+2 / +1 ]
Effective for subjects hav ing sudden movements, sudden 
acceleration/deceleration, or sudden stops. Even if the moving 
subject’s speed suddenly changes  dramatically, the camera 
continues to focus the target...

92
3 Selecting AI Servo AF Characteristics (For a Subject) N
 AF pt auto switching
This sets the switching sensitivity of the 
AF points as they track the subject 
moving dramatically up, down, left, or 
right.
This setting takes effect in the following 
AF area selection modes: AF point 
expansion (Manual selection  ), AF 
point expansion (Manual selection, 
surrounding points), Zone AF (Manual 
selection), 61-point automatic selection 
AF.
[0] Standard setting for gradual AF point switching.
[+2 / +1...

93
3 Selecting AI Servo AF Characteristics (For a Subject) N
You can adjust each case’s three parameters (1. Tracking sensitivity, 2. 
Accel./decel. tracking, and 3. AF  pt auto switching) as desired.
1Select a case.
 Turn the < 5> dial to select the icon 
of the case you want to adjust.
2Press the < c> button.
 The selected case will have a purple 
frame.
3Select the desired item.
 Turn the < 5> dial to select a 
parameter, then press < 0>.
  When Tracking sensitivity is selected, 
the setting screen...

94
With the [22] to [ 25] menu tabs, you 
can set the AF functions to suit your 
shooting style or subject.
You can set the AF operation characte ristics and shutter-release timing 
for the first shot during continuous shooting with AI Servo AF.
: Equal priority
Equal priority is given to focusing and 
shutter release.
: Release priority
Pressing the shutter button takes the 
picture immediately even if focus has not 
been achieved. This gives priority to 
getting the shot rather than achieving 
correct...

95
3 Customizing AF Functions N
You can set the AF operation characte ristics and shutter-release timing 
during continuous shooting after t he first shot with AI Servo AF.
: Equal priority
Equal priority is given to focusing and 
continuous shooting speed. In low light 
or with low-contrast subjects, shooting 
speed may slow down.
: Shooting speed priority
Priority is given to the continuous shooting speed instead of achieving 
focus. The continuous shooting sp eed does not slow down. Convenient 
when...

96
3 Customizing AF Functions N
For the lenses below, which have an  electronic focusing ring, you can 
set whether to use the electronic focusing ring.
: Enable after One-Shot AF
After AF operates, if you keep pressing 
the shutter button, you can focus 
manually.
: Disable after One-Shot AF
After AF operates, manual focusing is 
disabled.
OFF: Disable in AF mode
When the lens’ focus mode switch is set to [ AF], manual focusing is 
disabled.
2 3: One Shot
USM lens electronic MF
EF50mm f/1.0L USM EF300mm...

97
3 Customizing AF Functions N
Enables or disables the EOS-dedi cated 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. This prevents the AF-
assist beam from disturbing others.
IR: IR AF assist beam only
Among external Speedlites, only models with an infrared AF-assist 
beam will be able to emit the beam. Set this if you do not want the AF 
assist to be emitted as small flashes....

98
3 Customizing AF Functions N
If focus cannot be achieved with aut ofocus, you can have the camera 
keep searching for the correct fo cus or have it stop searching.
ON: Continue focus search
If focus cannot be achieved with 
autofocus, the lens is driven to search for 
the correct focus.
OFF: Stop focus search
If autofocus starts and the focus is far off 
or if focus cannot be achieved, the lens 
drive stops. This prevents the lens from 
becoming grossly out of focus due to 
focus searching.
You can...

99
3 Customizing AF Functions N
: 15 points
Fifteen major AF points will be manually selectable.
: 9 points
Nine major AF points will be manually selectable.
You can limit the selectable AF area selection modes to suit your 
shooting preferences. Turn the < 5> dial to select a selection mode, 
then press < 0> to append a < X> checkmark. Then select [ OK] to 
register the setting.
: Manual select.:Spot AF
For pinpoint focusing with a narrower AF 
point than single-point AF.
: Manual selection:1 pt AF
One...

100
3 Customizing AF Functions N
: Manual select.:Zone AF
The 61 AF points are divided into nine zones for focusing.
: Auto selection: 61 pt AF
All of the AF points are used for focusing.
You can set the method for changing the AF area selection mode.
  →  M-Fn button
After you press the < S> button, each 
time you press the < B> button, the 
AF area selection mode changes.
  →  Main Dial
After you press the < S> button, turning 
the < 6> dial changes the AF area 
selection mode.
AF area selection...