Canon 1dx Owners Manual

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With the [22] to [ 25] menu tabs, you 
can set 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 focus.
: Focus priority
Pressing the shutter button does not  take the picture until focus has 
been achieved. Effective when you want to achieve focus before 
capturing the shot.
3  Customizing AF Functions
22: AI Servo
AI Servo 1st image priority
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You can set the AF operation characte ristics and shutter-release timing 
for subsequent shots during conti nuous shooting 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 you want to maintain  the continuous shooting speed.
: Focus priority
Priority is given to achieving focus instead of the continuous shooting 
speed. The picture is not taken until focus is achieved. Effective when 
you want to achieve focus before capturing the shot.
AI Servo 2nd image priority
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3 Customizing AF Functions
You can set whether and how to use the electronic focusing ring when 
using one of the electronic focusing ring-equipped lenses below.
: Enable after One-Shot AF
If you keep pressing the shutter button 
halfway after AF operation, you can 
focus manually.
: Disable after One-Shot AF
Manual focusing is disabled after AF 
operation.
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 f/2. 8L USM EF600mm f/4L USM
EF85mm f/1.2L USM EF400mm f/2.8L USM EF1200mm f/5.6L USM
EF85mm f/1.2L II USM EF400mm f/2.8L II USM EF28-80mm f/2.8-4L USM
EF200mm f/1.8L USM EF500mm f/4.5L USM
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94
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
Only external Speedlite models that  have an infrared AF-assist beam 
will emit the AF-assist beam. Set this if you do not want the AF assist \
using small flashes to be emitted.
You can set the AF operation characte ristics and shutter-release timing 
for One-Shot AF.
: Focus priority
The picture is not taken until focus is 
achieved. Effective when you want to 
achieve focus before capturing the shot.
: Release priority
Priority is given to taking the picture 
instead of achieving focus. This gives 
priority to getting the shot.
Note that the picture will be taken 
even if focus has not been achieved.
AF-assist beam firing
One-Shot AF release priority
If the external Speedlit e’s Custom Function [AF-assist beam firing ] is set to 
[ Disable ], the AF-assist beam will not be  emitted, regardless of this 
function’s setting.
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3 Customizing AF Functions
When the AF area selection mode is  set to 61-point automatic selection 
AF or Zone AF, AF is possible while using the subject’s color or face 
detection information.
Using this function makes it easie r to continue focusing a moving 
subject with AI Servo AF. Using this function also makes it easier to 
focus human subjects in One-Shot AF mode.
ON: Enable
The AF point is automatically selected 
based on the AF information combined 
with the color and facial information of 
the subject. With AI Servo AF, the color 
of the area where focus is initially 
achieved is recorded. 
The camera then tracks that color by  switching AF points. If a human 
face is detected, the AF tracking and  AF point switching switch to this 
face. With 61-point automatic selection AF and AI Servo AF, you can 
manually select the initial AF point to be used to focus. If multiple fa\
ces 
are detected, the camera focuses using the AF point on the optimum 
face given current conditions.
With One-Shot AF, the camera selects  the AF point based on face position 
information, and you can gi ve priority to composition when taking the picture.
OFF: Disable
The AF point is selected automaticall y based only on the AF information.
24
Auto AF point selection: EOS iTR AF
 When [Auto AF pt sel: EOS iTR AF ] is set to [Enable], focus will take 
slightly longer than with [ Disable].
  Even if you set [ Enable], the desired result may not be obtained 
depending on the shooting  conditions and subject. 
  Under low-light conditio ns when the flash emits the AF-assist beam 
automatically, the AF point is select ed automatically based only on the 
AF information. (The AF does  not use facial information.)
  Face detection may not work  if the face is small or in low-light condition.
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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 change the number of manua lly selectable AF points. With 
automatic AF point selection, all 61 AF points will remain active 
regardless of this setting.
: 61 points
All 61 AF points will be manually 
selectable.
: Only cross-type AF points
Only cross-type AF points will be 
manually selectable. The number of 
selectable cross-type AF points will differ 
depending on the lens.
Lens drive when AF impossible
Selectable AF point
Super telephoto lenses ca n become grossly out of focus during continuous 
focus search, taking more time to ac hieve focus the next time. Therefore, 
setting [ Stop focus search ] is recommended for su per telephoto lenses.
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3 Customizing AF Functions
: 15 points
Fifteen main AF points will  be manually selectable.
: 9 points
Nine main 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 checkmark < X>. 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 of the AF points set by [ Selectable 
AF point] setting can be selected.
: Expand AF area:
The camera will focus with the ma nually-selected AF point and the 
adjacent AF points (above, below, left and right).
: Expand AF area:Surround
The camera will focus with the ma nually-selected AF point and the 
surrounding AF points.
Select AF area selection mode
With a lens from groups F to H (p. 80, 81), the number of manually 
selectable AF points will be fewer.
  Even with settings other than [ 61 points], AF point expansion (Manual 
selection  ), AF point expansion (Man ual selection, surrounding points), 
and Zone AF (manual selectio n of Zone) are still possible. 
  When you press the  button, the AF points that are not manually 
selectable will not be displayed.
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: 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, the AF 
area selection mode changes each time 
you press the < B> button.
 →  Main Dial
After you press the < S> button, turning 
the < 6> dial changes the AF area 
selection mode.
You can set the AF area selecti on mode and manually-selected AF 
point separately for vertical  shooting 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 method
 The < X> mark cannot be deleted from [ Manual selection:1 pt AF].
  If the attached lens belongs to gr oup H (p.81), you can only select 
[ Manual select.:Spot AF ] and [Manual selection:1 pt AF].
Orientation linked AF point
When [   → Main Dial ] is set, use the < 9> to move the AF point 
horizontally.
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3 Customizing AF Functions
: Select separate AF points
The AF area selection mode and manua lly-selected AF point (or Zone) 
can be set separately for each camera orientation (1. Horizontal, 2. 
Vertical with the camera grip at the to p, 3. Vertical with the camera grip 
at the bottom). Convenient when, fo r instance, you want to keep using 
the right AF point during all camera orientations.
When you manually select the AF area selection mode and AF point (or 
Zone with Zone AF) for each of the  three camera orientations, they will 
be set for the respective orientation. Whenever you c hange the camera 
orientation, the camera will switch  to the AF area selection mode and 
manually-selected AF point (or Zone) set for that orientation.
During manual AF point selection, the selection can either stop at the 
outer edge of the area AF frame or it  can move to the opposite AF point. 
This function works in AF area selection modes other than 61-point 
automatic selection AF and Zone AF. (It takes effect in 61-point 
automatic selection AF only with AI Servo AF.)
: Stops at AF area edges
Convenient if you often use an AF point 
along the edge.
: Continuous
Instead of stopping at  the outer edge, the 
selected AF point continues to the 
opposite side of the area AF frame.
2 5
Manual AF point selection pattern
If you clear the camera se ttings to their defaults (p.58), the setting will be 
[ Same for both vert/horiz ]. Also, your settings for the three camera 
orientations will be cleared and all se ttings will revert to Single-point AF 
(Manual selection) with the  center AF point selected.
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You can set whether or not to disp lay the AF point(s) in the following 
cases: 1. When selecting the AF point (s), 2. When the camera is ready 
to shoot (before AF operation), 3.  During AF operation, and 4. When 
focus is achieved.
: Selected (constant)
The selected AF point(s) is always 
displayed.
: All (constant)
All 61 AF points are always displayed.
: Selected (pre-AF, focused)
The selected AF point(s) is displayed for 1, 2, and 4.
: Selected (focused)
The selected AF point(s) is displayed for 1 and 4.
OFF: Disable display
For 2, 3, and 4, the selected  AF point(s) will not be displayed.
AF point display during focus
If [Selected (pre-AF, focused) ] or [Selected (focused) ] is set, the AF point 
will not be displayed even when fo cus is achieved with AI Servo AF.
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