Canon 1DX review

The Canon EOS 1DX has 18MP and 61 AF points, and shoots at 12fps

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We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using DXO Analyzer software to generate the data to produce the graphs below.

A high signal to noise ratio (SNR) indicates a cleaner and better quality image.

For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.

Here we compare the Canon EOS-1D X with the Canon 1D Mark IV, Canon 5D Mark III, Nikon D4 and Nikon D800.

JPEG signal to noise ratio

Canon 1DX review

These results show that Canon and Nikon have a similar aim for the in-camera processing of their top-end cameras. This indicates that the JPEG files from the Canon 1DX, Canon 5D Mark III and Nikon D4 have very similar noise levels. Not surprisingly, these camera beat both the older Canon 1D Mark IV and the high-resolution Nikon D800.

Raw (after conversion to TIFF) signal to noise ratio

Canon 1DX review

It's a very similar story for the raw files (after conversion to TIFF), though the Canon 1DX appears to have a significantly better result at the highest sensitivity settings.

JPEG dynamic range

Canon 1DX review

Whereas the Nikon D4 and D800 produces JPEGs with a dynamic range of around 11EV at the lower native sensitivity settings, the Canon 1DX and 5D Mark III produce results closer to 10EV. However, the Canon 1DX does a better job of maintaining the dynamic range as sensitivity rises.

Raw (after conversion to TIFF) dynamic range

Canon 1DX review

With the exception of the Canon 1DX, all the cameras' raw files (after conversion to TIFF) have significantly higher dynamic range than their JPEG output. This means that there is more scope to adjust the raw files to reveal tonal variations in the shadows and/or highlights.

Although the D800 is capable of capturing the greatest dynamic range, at the mid-range sensitivity settings, the 1DX is best. At the highest settings, the Nikon D4 and 1DX lead the way, with the 1DX doing the best job at the very top value.

Tech Specs

Product TypeDigital SLR Camera Body Only
Battery Size SupportedProprietary Battery Size
Green CompliantYes
Maximum Video Resolution1920 x 1080
Effective Camera Resolution18.1 Megapixel
Product FamilyEOS
HD Movie ModeYes
Memory Card SupportedCompactFlash Type I (UDMA Compatible), CompactFlash Card Type II
Image StabilizationNo
Digital ZoomNo
Brand NameCanon
DurabilityWater Resistant, Dust Resistant
FeaturesFace Detection, Live View, Orientation Sensor, Self-timer, Continuous Shooting Mode, Time Lapse Function
Screen Size8.1 cm (3.2")
Video FormatsMOV, MPEG-4
Viewfinder TypeSLR
Weight (Approximate)1.34 kg
Green Compliance Certificate/AuthorityErP, REACH, RoHS, WEEE
Image Sensor Size36 mm x 24 mm
Maximum Image Resolution5184 x 3456
Display Screen TypeLCD
Height163.6 mm
Width158 mm
Depth82.7 mm
Image FormatsJPEG, RAW
External FlashOptional
Focus ModesAuto, Manual
ManufacturerCanon, Inc
Product Model1D X
Product NameEOS-1D X Digital SLR Camera
Product LineEOS
Exposure Control
  • Program AE
  • Aperture Prioirty
  • Shutter Priority
  • Manual
Aspect Ratio3:2
Manufacturer Part Number5253B009
Manufacturer Website Address
Marketing Information

The EOS-1D X combines speed with image quality, to create the next generation camera for professionals. Full frame 18 megapixel sensor with Dual "DIGIC 5+" processors sets the standard, and up to 12 frames per second shooting takes it beyond.

Package Contents
  • EOS-1D X Digital SLR Camera
  • Rechargeable Li-ion Battery LP-E4N
Limited Warranty1 Year