Canon recently announced a major upgrade to the firmware for the 1DX  professional camera body. This included a number of new features that added not only to improved AF performance but also gives the user a number of additional and more flexible operating parameters and options.

These are the settings for my 1DX after the release of firmware 2.0.3

Menus

Item/Function/Mode

C1

C2

C3

Variable/

(Unsaved)
L/Scapes

Action

I

Action

II

General
Shooting Mode

Av

M

M

Av
Metering Mode Evaluative Evaluative Evaluative Evaluative
AF Mode One Shot AI Servo AI Servo AI Servo
Drive Mode

Single

H

H

H
ISO Settings (Red #2)*
   Speed

200

400

Auto

200
   Range

50-3200

50-25600

50-51200

50-6400
   Auto ISO Range

n/a

n/a

200-3200

n/a
   Min.shutter speed

n/a

n/a

1/500

n/a
Menus
Red#1
WB

AWB

AWB

AWB

AWB
Set Custom WB

–

–

–

–
WB Shift/Bkt.

–

–

–
Color Space

AdobeRGB

AdobeRGB

AdobeRGB

AdobeRGB
Picture Style

3,-1,0,0

3,-2,0,0

3,-2,0,0

3,-1,0,0
Lens Aberration Correction

Disabled

Disabled

Disabled

Disabled
Multiple Exposure

Disabled

Disabled

Disabled

Disabled
Red#2
Jpeg quality

n/a(L,10)

n/a(L,10)

n/a(L,10)

n/a(L,10)
Image type/Size

RAW

RAW

RAW

RAW
Autolighting Optimiser

OFF

OFF

OFF

OFF
Long Exp. Noise Reduction

OFF

OFF

OFF

OFF
High ISO Speed NR

OFF

OFF

OFF

OFF
Highlight Tone Priority*

OFF

OFF

OFF

OFF
Red#3
Image Review

8 sec.

8 sec.

8 sec.

8 sec.
Beep

Enable

Enable

Enable

Enable
Release Shutter w/out card

OFF

OFF

OFF

OFF
Mirror Lock Up*

OFF

OFF

OFF

OFF
Dust Delete Data

–

–

–

–
External Speedlite Control
   Flash Firing

Enable

Enable

Enable

Enable
   E-TTL II Metering

Enable

Enable

Enable

Enable
   Flash Sync. In Av Mode

Auto

Auto

Auto

Auto
Red#4
LV Stills/Movie Set*

Stills

Stills

Stills

Stills
AF Mode

Live Mode

Live Mode

Live Mode

Live Mode
Grid Display

OFF

OFF

OFF

OFF
Exposure Simulation

Enable

Enable

Enable

Enable
Silent LV Shoot

Mode 1

Mode 1

Mode 1

Mode 1
Metering Time

4 sec.

4 sec.

4sec.

4sec.
AF #1
AF Case (0, 0, 0) Case 1 Case 3 Case 3 Case 3
Case 3 reconfig. to -2, +2, +2
AF #2
AI Servo 1st Image Priority

n/a

Focus

Focus

Focus
AI Servo 2nd Image Priority*

n/a

+2

+2

+2
AF#3
USM lens electronic MF

Enable

n/a

n/a

n/a
AF-assist beam firing

ON

ON

ON

ON
One-Shot AF release priority

Focus

n/a

n/a

n/a
AF#4
Auto AF pt.sel.: EOS iTR AF

OFF

OFF

OFF

OFF
Lens drive when AF imposs.

ON

ON

ON

ON
Selectable AF point

61 pt.

61 pt.

61 pt.

61 pt.
Select AF area selec. Mode

All excl. zone

Spot,5pt., zone excl.

Spot,5pt., zone excl.

ALL selected
AF area selection method

M-Fn

M-Fn

M-Fn

M-Fn
Orientation linked AF point

Sep. AF pt: pt only

Sep. AF pt: pt only

Sep. AF pt: pt only

Sep. AF pt: pt only
Initial AF pt.,,AI Servo AF

n/a

Initial pt.

Initial pt.

Initial pt.
AF#5
Manual AF pt. selec. Pattern

Contin.

Contin.

Contin.

Contin.
AF pt. display during focus

All(const.)

All(const)

All(const)

All(const.)
VF display illumination

ON

ON

ON

ON
AF status in viewfinder

Outside

Outside

Outside

Outside
AF Microadjustment

ON

ON

ON

ON
Blue#3
Highlight alert

Enable

Enable

Enable

Enable
AF point display

Enable

Enable

Enable

Enable
Playback grid

OFF

OFF

OFF

OFF
Histogram display

RGB

RGB

RGB

RGB
Movie play count

Rec time

Rec time

Rec time

Rec time
Magnification

1x

1x

1x

1x
Control over HDMI

Disable

Disable

Disable

Disable
Tools#1
Record func+card/folder sel.

Standard

Standard

Standard

Standard
File numbering

Cont.

Cont.

Cont.

Cont.
File name

Preset

Preset

Preset

Preset
Auto rotate

Computer

Computer

Computer

Computer
Format card*
Tools#2
Auto.power off

15 min.

15 min.

15 min.

15 min.
LCD Brightness

6

6

6

6
Date/Time/Zone
Language

English

English

English

English
VF Grid display

Disable

Disable

Disable

Disable
INFO.button display options

Elec.level

Elec.level

Elec.level

Elec.level
Tools#3
Video System

PAL

PAL

PAL

PAL
Battery Info
Sensor Cleaning
Communication settings

Disable

Disable

Disable

Disable
GPS device settings

Disable

Disable

Disable

Disable
Tools#4
Save/load cam. sett. on card
Custom shooting modes C1,2,3 set C1,2,3 set C1,2,3 set C1,2,3 set
Clear all camera settings
Copyright information
System display status
Firmware version

2.0.3

2.0.3

2.0.3

2.0.3
CUSTOM FUNCTIONS
C.Fn1:Exposure
Exposure increment levels

1/3

1/3

1/3

1/3
ISO speed setting increments

1/3

1/3

1/3

1/3
Bracketing auto cancel

ON

ON

ON

ON
Bracketing sequence

0 – +

0 – +

0 – +

0 – +
Number of bracketed shots

5

5

5

5
Spot meter. Linked to AF point

Active

Active

Active

Active
Safety shift

OFF

OFF

OFF

Tv/Av
C.Fn2:Exposure
Restrict Shooting Modes

n/a

n/a

n/a

All active
Restrict metering modes

Eval. only

Eval. only

Eval. only

Eval. only
Metering used in manual exp.

Eval.

Eval.

Eval.

Eval.
Set Shutter speed range

Default

Default

Default

Default
Set Aperture range

Default

Default

Default

Default
AE Microadjustment

OFF

OFF

OFF

OFF
FE Microadjustment

OFF

OFF

OFF

OFF
C.Fn3:Drive
Continuous shooting speed

12

12

12

12
Limit continuous shot count

Disable

Disable

Disable

Disable
Restrict drive modes

14 H

OFF

Only, H, L

enabled

Only H,L,H14

All active
C.Fn4:Display/Operations
Focusing Screen

Standard

Standard

Standard

Standard
Viewfinder info.during exp.

OFF

OFF

OFF

OFF
LCD panel illum. during bulb

OFF

OFF

OFF

OFF
Rec. card img. Size setting

LCD Mon.

LCD Mon.

LCD Mon.

LCD Mon.
C.Fn5:Operations
Dial direction during Av/Tv

Normal

Normal

Normal

Normal
Av setting without lens

OFF

OFF

OFF

OFF
Multi function lock

Quick Cntl

Quick Cntl

Quick Cntl

Quick Cntl
Custom Controls

See below

See below

See below

See below
“key/microphone” button fn. Rec.memo Rec.mem Rec.mem Rec.memo
CUSTOM CONTROLS (C.Fn 5 ) See above
Shutter button Metering Metering Metering Metering
AF-ON AE Lock Metering and AF Start Metering and AF Start AE Lock
* Metering and AF Start Metering and AF Start Metering and AF Start Metering and AF Start
DOF button Switch to reg. AF pt. Switch to reg. AF pt. Switch to reg. AF pt. Switch to reg. AF pt.
Lens OShot=AI OShot=AI OShot=AI OShot=AI
M-Fn Switch to Custom Shooting Mode Switch to Custom Shooting Mode Switch to Custom Shooting Mode Switch to Custom Shooting Mode
M-Fn2See AF settings below Switch to reg. AF function Switch to reg. AF function Switch to reg. AF function Switch to reg. AF function
SET Magnify Exp.comp Exp.comp Exp.comp
Main Dial

Tv

Tv

Tv

Tv
Quick Control Dial

Aperture

Aperture

Aperture

Aperture
Toggle

AF pt. sel.

AF pt. sel.

AF pt. sel.

AF pt. sel.
AF-ON button AF settings
AF Start point

Sel. AF pt

Sel.AF pt.
AI Servo AF characteristics

Maintain

Maintain
AF Mode

AI Servo

AI Servo
14fps super high speed

OFF

Enable
* Button AF settings
AF Start point

Sel.AF pt

Sel.AF pt

Sel.Af pt.

Sel. AF pt.
AI Servo AF characteristics

Case 1

Case 3

Case 3

Maintain
AF Mode

Maintain

AI Servo

AI Servo

Maintain
14fps super high speed

OFF

OFF

OFF

OFF
C.Fn6:Others
Add cropping information

OFF

OFF

OFF

OFF
Timer duration

6 sec.

6 sec.

6 sec.

6 sec.
Sutter release time lag

Short.

Short.

Short.

Short.
Memo audio quality

48kHz

48kHz

48kHz

48kHz
Default erase option
Same exp. for new aperture

Tv

Tv

Tv

Tv
MY MENU
Mirror Lock up
LV Stills/Movie Set
ISO speed settings
AI Servo 2nd image priority
Highlight tone priority
Format card
 
M-Fn2 button AF settings
AF Area selection mode 9 pt. surround 9 pt. surround 9 pt. surround 9 pt. surround
Tracking sensitivity -1 -1 -1 -1
Acceleration/De-cel. +1 +1 +1 +1
AF point switching 0 0 0 0
AI Servo 1st image priority Focus Focus Focus Focus
AI Servo 2nd image priority +1 +1 +1 +1

NOTES:

  1. Remember that when camera is switched off and then on again, settings revert to the above for C1, C2, C3.  The Variable/Unsaved setting remains at the settings when the camera was switched off.
  2. All settings can be saved to a CF card and the camera restored if necessary.
  3. Be careful with the M-Fn button. When this is pushed the camera cycles between C1, C2, C3 and “Variable” settings. If you want to change AF area selection mode  the AF point selection button must be pushed first before you cycle through the focus modes with the M-Fn button. NB!! Otherwise you cycle through C1, C2 and C3!