Nikon D40 vs Canon EOS 1D X Mark III

This is a full comparison between the cameras Nikon D40 and Canon EOS 1D X Mark III. We compare them by looking at the categories you see below.

Manufacturing

Nikon D40 is manufacturered by Nikon but Canon EOS 1D X Mark III is from Canon. Both Nikon and Canon are well known brands though.

Nikon D40 were released 2006 and Canon EOS 1D X Mark III was released 2020. That is a 14 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D40 2006
Canon EOS 1D X Mark III 2020

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon D40 has a "Nikon DX"-sensor while Canon EOS 1D X Mark III has a "Canon Full Frame"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Nikon D40 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5
Canon EOS 1D X Mark III 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Nikon)
Camera selection can affect the focal length (Canon)

Resolution

Nikon D40 has a 6 MP (Megapixels) resolution while Canon EOS 1D X Mark III has 20 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D40 6 MP
6016000 pixels
3008 x 2000
Canon EOS 1D X Mark III 20 MP
19961856 pixels
5472 x 3648

Canon EOS 1D X Mark III has a 232 % larger resolution than Nikon D40. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Canon EOS 1D X Mark III has a larger ISO-range than Nikon D40. Canon EOS 1D X Mark III has an ISO range that stretches from 100 to 102400 while Nikon D40 has 200 to 3200.

Camera ISO Range
Nikon D40 200-3200
Canon EOS 1D X Mark III 100-102400

Autofocus and lens compatibility

There is a big difference between these two cameras. Canon EOS 1D X Mark III has a built-in autofocus motor but Nikon D40 does not. If you want to be able to use autofocus on Nikon D40 there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon D40
Lens compatibility chart for Canon EOS 1D X Mark III

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D40 can shoot up to 2,5 pictures per seconds and Canon EOS 1D X Mark III can shoot up to 20 pictures per seconds.

Camera FPS (Frames per second)
Nikon D40 2,5
Canon EOS 1D X Mark III 20

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

It is only one of these two cameras that support recording movies and movie clips and that is Canon EOS 1D X Mark III. Sadly, the Nikon D40 does not support this.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Canon EOS 1D X Mark III weighs 1440 gr (equal to 3.17 lb) which is 176% heavier than Nikon D40 and its 522 gr (or 1.15 lb).

Camera Weight
Nikon D40 522 gr
1.15 lb
Canon EOS 1D X Mark III 1440 gr
3.17 lb

Nikon D40 vs Canon EOS 1D X Mark III Specs

Below you will find the complete and detailed technical specs for both Nikon D40 and Canon EOS 1D X Mark III, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Nikon D40
Canon EOS 1D X Mark III
Name Nikon D40 Canon EOS 1D X Mark III
Manufacturer Nikon Canon
Release Date and Price
Nikon D40
Canon EOS 1D X Mark III
Release Year 2006 2020
Release Date 2006-11-16 2020-01-07
MSRP 729 USD 6499 USD
Buy it today
Camera Type
Nikon D40
Canon EOS 1D X Mark III
Camera Type DSLR DSLR
Sensor
Nikon D40
Canon EOS 1D X Mark III
Sensor Size APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Full Frame (approx 36 x 24 mm)
Sensor Type CCD CMOS
Resolution 3008 x 2000 pixels 5472 x 3648 pixels
Megapixels 6 MP 20 MP
Image Processor EXPEED DIGIC X
Image
Nikon D40
Canon EOS 1D X Mark III
ISO Range 200 - 3200 100 - 102400
White Balance Presets 6 7
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Nikon D40
Canon EOS 1D X Mark III
Autofocus Motor No Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Touch
Face Detection
LiveView
Focus Points 3 191
Lens Mount Nikon F

See Compatible Lenses
Canon EF

See Compatible Lenses
Focal Length Multiplier DX / APS-C (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Nikon D40
Canon EOS 1D X Mark III
Articulated LCD Fixed Fixed
Screen size 2,5” 3.2”
Screen dots 230000 2100000
Touch screen No Yes
Screen type N/A TFT LCD
Live view No Yes
Viewfinder Type Optical (pentamirror) Optical (pentaprism)
Viewfinder Coverage 95% 100%
Viewfinder Magnification 0.8× (0.53× 35mm equiv.) 0.76×
Viewfinder Resolution N/A 0
Photography features
Nikon D40
Canon EOS 1D X Mark III
Frames per second 2,5 fps 20 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes No
Built-in Flash Range 17 meters N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Partial
Exposure Compensation +/- 5 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D40
Canon EOS 1D X Mark III
Video recording No Yes
Video format N/A MPEG4
H.264
H.265
Video resolution N/A 1280 x 720
1920 x 1080
3840 x 2160
4096 x 2160
Built-in Microphone No Yes
Built-in Speakers No Yes
Storage
Nikon D40
Canon EOS 1D X Mark III
Memory Card SD/SDHC
Compact Flash Express
Connectivity
Nikon D40
Canon EOS 1D X Mark III
HDMI Output No Yes
Microphone Port No Yes
Headphone Port No Yes
Wireless No Yes
Built-in (Wireless LAN (IEEE802.11b/g/n) (2.4 GHz only), with Bluetooth support)
Remote Control Yes (Optional (ML-L3))
Remote control with N3 type contact
GPS No Yes
Built-in
Body & Dimensions
Nikon D40
Canon EOS 1D X Mark III
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details Nikon EN-EL9 Lithium-Ion & charger included
LP-E19 lithium-ion battery & dual charger
Battery Life (CIPA) 470 shots 2850 shots
Width 124 mm 158 mm
Height 94 mm 168 mm
Depth 64 mm 83 mm
Weight 522 gram 1440 gram