Canon EOS-1DX Mark III Specification Sheet

Specications

Type

Typ e Digital, AF/AE single-lens reex camera

Image Processor DIGIC X

CFexpress cards, Type B

• Dual CFexpress card slots

• XQD, CFast, CF and SD cards not supported

Recording Media

CFexpress cards provide signicantly faster read/write speeds than CFast or CF cards, supporting
extensive still-image burst rates, and RAW video recording.

* Canon is an authorized licensee of the CFast 2.0™ trademark, w hich may be registered in various jurisdictions.

Image Format Approx. 36mm x 24mm (35mm Full-frame)

Lens Mount Canon EF Mount

Compatible Lenses Canon EF Lenses (excluding EF-S and EF-M lenses)

Specications CFexpress 1.0 CFast 2.0

Maximum transfer spee d 1.97 GB/s 600 MB/s

Image Sensor

Typ e High-sensitivity, high-resolution, large single-plate full-frame CMOS sensor

E󰀨ective Pixels Approx. 20.1 megapixels

Total Pixels Approx. 21.4 megapixels

Aspect Ratio 3:2 (Horizontal: Vertical)

Color Filter System RGB primary color lters

Low Pass Filter High Detail Low Pass Filter, breaking one incoming light ray into 16 rays at image sensor

(1) Self Cleaning Sensor Unit

• Self-cleaning can be done automatically when the power is turned on/o󰀨.

• During manual cleaning ([Clean now]), the data for light spot correction is also obtained.
(2) Dust Delete Data acquisition and appending

Dust Removal Feature

• The coordinates of the dust adhering to the low-pass lter are detected by a test shot and append­ed to subsequent images.

• The dust coordinate data appended to the image is used by the EOS software to automatically
erase the dust spots.

(3) Manual cleaning

Recording System

Recording Format

Design Rule for Camera File System 2.0 and EXIF 2.31*

* Suppor ts time di󰀨erence information

1

Image Format

JPEG (8bit), HEIF (10 bit), RAW (14 bit, Canon original)

Recording Pixels

Backup Recording N/A

The following three types of le numbers can be set:
(1) Continuous numbering

• The numbering of captured images continues even after you replace the card.

File Numbering

(2) Auto reset

• When you replace the card, the numbering will be reset to start from 0001. If the new card already

(3) Manual reset

• Resets the le number to 0001, and creates a new folder automatically.

Image type Extension

JPEG JPG

Stills

Movies

Image quality Resolution (Pixels)

JPEG

HEIF L

RAW R AW / C-RAW

HEIF HIF

RAW

C-RAW

ALL-I, IPB MP4

RAW CRM

L Approx. 20.0 megapixels (5 472 x 3648)

M1 Approx. 12.7 megapixels (4368 x 2912)

M2 Approx. 8.9 megapixels (3648 x 2432)

S Approx. 5.0 megapixels (2736 x 1824)

Approx. 20 megapixels (5472 x 3648)

CR3

contains images, the numbering will continue from the last recorded image in the card.

RAW + JPEG/HEIF
Simultaneous Record­ing

Simultaneous recording of any combination of RAW/C-RAW and JPEG or HEIF image-recording quality
is supported.

Color Space sRGB, Adobe RGB

Picture Style

Auto, Standard, Portrait, Landscape, Fine Detail, Neutral, Faithful, Monochrome, User Dened 1–3*

* [Standard] is the default set ting for [User Def. 1–3]

White Balance

Auto (Ambience priority/White priority), Daylight, Shade, Cloudy*1, Tungsten Light, White Fluorescent
Light, Flash (Auto Setting)*2, Custom (Custom WB) 1–5*3, Color Temperature

Settings

*1 Also e󰀨ective in twilight and sunset.
*2 With an E X or EL-series Speedlite having the color temperature information transmission feature, the color temperature setting

change s to match the color temperature w hen the ash is red. Set to approx. 6000K if the  ash unit does not have the color
temperature communication feature.

*3 [Selec t image on card], [Record and re gister WB], and [Edit WB name] are supp orted. HEIF image cannot be se lected.

Auto White Balance Option between ambience priority and white priority settings

Color Temperature
Compensation

Blue/amber bias: ±9 levels
Magenta/green bias: ±9 levels
Corrected in reference to the current WB mode's color temperature.

Color Temperature
Information Transmis-

Provided

sion

Viewnder

Typ e Eye-level SLR type, with pentaprism

Coverage Approx. 100% ver tically and horizontally

Magnication Approx. 0.76x (-1m-1 with 50mm lens at innity) / 35.1° angle of view

AF Point Display Illuminated red dot-matrix display

2

Cropping Information
Display

Displays reference lines in the Viewnder only during (1:1) cropping when set to 6:6.

Eye Point Approx. 20mm (at -1m-1 from eyepiece lens center)

Dioptric Adjustment
Correction

–3.0 to +1.0 m-1 (diopter)

Focusing Screen Fixed

Mirror Quick-return half mirror

Provided

Time Display

* Time of day di splayed in shutter speed/aper ture area in viewnder, when ISO button is press ed, during view nder shoot ing stand­by

AF displays, with red dot- matrix illumination:

191 AF points; active AF Area; Zone AF brackets; Automatic AF point select brackets

Exposure Displays:

Manual mode icon; AE Lock icon; Flash ready icon; FEL icon; Shutter speed; Aperture; Exposure
compensation scale; Frames remaining on card; ISO; Highlight Tone Priority (D+) active; AF conrma­tion icon; AI Servo AF active arrows

Viewnder

Information

Right side display:

+/- 3-stop metering scale; Flash Exposure Compensation/FEL/Flash Metered Manual scale; Frames
remaining in burst (0~99); JPEG/RAW icons; Battery level icon

Displayed on focus screen, via LCD overlay:

Spot metering circle; Electronic level display; Grid lines; Shooting mode; Metering mode; White Bal­ance setting; Drive mode; AF Operation; Flicker Detection icon; Warning symbol; AF status indicator
All except Spot meter circle can be displayed or not with [Show/Hide in viewnder]

Depth Of Field Preview Provided

Autofocus

Typ e TTL secondary image-forming phase-di󰀨erence detection system with High-res AF Sensor

Max. 191 points (Cross-type AF points: Max. 155 points)

AF Point t ype Maximum available AF points

Dual Cross-type AF Points at f/2.8 and f/5.6 1
Cross-type AF Point s at f/4.0+f/5.6 90

AF Points (Optical AF)

Cross-type AF Point s at f/5.6 64
AF Points at f/5.6 36
AF Points at f/8 191
Cross-type AF Point s at f/8 65

The number of AF points, cross-type AF points and dual cross-type AF points vary depending on the
lens used.

Focusing
Brightness Range

f/2.8 AF point at center EV -4 – 21
f/5.6 AF point at center EV -3 – 21
Peripheral f/5.6 AF points EV -1.5 – 21

AF Point Brightness

(1) Autofocus

AF Operation

1. One-Shot AF

2. AI Servo AF

(2) Manual focus

When using a compatible lens, manual focusing will always become possible with the electric focusing

Electronic Full-time
Manual Focus

ring.
Disable/Enable
Compatible Lenses: EF400mm f/2.8L IS III USM, EF600mm f/4L IS III USM

3

AF Area Settings

AF Function
Registration/Switch­ing

Manually-selected AF Areas

• Spot AF

• Single-point AF

• AF point Expansion (4-point surround)

• AF point Expansion (8-point surround)

• Zone AF

• Large Zone AF (all AF points divided into three large zones)

Automatic AF point selection (all AF points available; reference brackets around AF array)

Customizable with Custom Controls

Subject Tracking
Settings

Selected AF Point
Display

Active AF Point Indi­cator

Eye Detection AF

(Live View and Movie)

AF Assist Beam

Exposure Control

Metering Modes

AF Priority (people): Enable / Disable
Subject Switching: Disable / Enable (slow) / Enable

Red dot-matrix illumination of AF points, zone AF brackets, and Auto AF Area brackets

(1) Displayed in viewnder area

Enables subject eye detection and AF when set to [Face+Tracking] and [Eye Detection AF: Enable].

Eye Selection

Auto

Manual

(1) Selects the eye closer to the camera (as detected from the angle of the fac e).
(2) At the same distance from the camera, selects the eye closer to the center of the image.

(1) Selected by touching the eye in the fac e selection frame.
(2) Can be selected with the Multi-controllers

When an external EOS-dedicated Speedlite is attached to the camera, the following options are avail­able:
(1) Enable
(2) Disable
(3) IR AF assist beam only

Optical Viewnder: 216-zone (18 x 12) metering with approx. 400,000-pixel RGB+IR metering sensor.
Live View: 384-zone (24 x 16) metering using image sensor output signals

The following metering modes selectable:
(1) Evaluative metering (linked to all AF points)
(2) Partial metering (Viewnder: Approx. 6.2% of the screen) (Live View: Approx. 5.8% of the screen)
(3) Spot metering (center, approx. 1.5% of viewnder) (Live View: Approx. 2.9% of the screen)

1. Center spot metering

2. AF point-linked spot metering (Custom Function)

• Linkable to all AF points.

• With automatic AF point selection, center spot metering will apply.

3. Multi-spot metering (Optical Viewnder only)

(4) Center-weighted average metering

• The selectable metering modes can be restricted (Custom Function).

Metering Range

Exposure Control
Systems

At 73°F/23°C, ISO 100, with evaluative metering:
EV 0–20 (Optical Viewnder)
EV -3–20 (Live View & Movie Recording)

(1) Program AE (Shiftable)
(2) Shutter-priority AE (Safety shift possible)
(3) Aperture-priority AE (Safety shift possible)
(4) Manual exposure

• The metering mode can be specied.

(5) Bulb
(6) Three custom shooting modes

4