Canon EOS-1D X Mark III Review

October 15, 2020 | Gavin Stoker |

Image Quality

All of the sample images in this review were taken using the 20 megapixel Fine JPEG setting, which gives an average image size of around 10Mb, although the file sizes do vary.

While a resolution of 20 effective megapixels may seem relatively modest by today's 40+ MP flagship DSLR standards, it's the size of the sensor - here full frame - and the quality of the lenses you twin with it that really allow the Canon EOS-1D X Mark III to shine.

The accent here is on crisp and detail rich picture quality, even at higher ISO settings, rather than playing the pixel battle. This is a camera, as we found, that can pretty much see in the dark, even if results towards the very upper reach of the expandable ISO settings can resemble a child's crayon drawing, as viewed through a sandstorm.

Shooting on auto ISO and dialing in ‘standard' and on occasion ‘landscape' picture settings to give a couple of examples, we found images straight out of the camera remained naturalistic in terms of colour fidelity, though on occasion JPEGs benefited from slight adjustments to saturation and contrast to give them a bit of on-screen punch.

Still, within a few seconds of image editing it's possible to have them looking their best - with detail really to the fore.

Shooting with the two zoom lenses we were provided with - the commendably comprehensive 24-70mm and 70-200mm - we were able to achieve some smooth ‘bokeh' blurred background effects, which really enhanced the impact of our photographic quarry.

A full frame camera unencumbered with a modest resolution equates to the fact that, unless the money this costs is the major stumbling block, then you can't really go wrong.

Noise

The Canon EOS-1D X Mark III's native sensitivity range covers ISO 100 to ISO 102400, with the option to record in RAW and JPEG separately and simultaneously, and extend the range down to ISO 50 and up to ISO 819200.

Here are some 100% crops which show the levels of noise for each ISO setting.

JPEG RAW

ISO 50 (100% Crop)

ISO 50 (100% Crop)

iso100.jpg iso100.jpg

ISO 100 (100% Crop)

ISO 100 (100% Crop)

iso100.jpg iso100.jpg

ISO 200 (100% Crop)

ISO 200 (100% Crop)

iso200.jpg iso200raw.jpg

ISO 400 (100% Crop)

ISO 400 (100% Crop)

iso400.jpg iso400raw.jpg

ISO 800 (100% Crop)

ISO 800 (100% Crop)

iso800.jpg iso800raw.jpg

ISO 1600 (100% Crop)

ISO 1600 (100% Crop)

iso1600.jpg iso1600raw.jpg

ISO 3200 (100% Crop)

ISO 3200 (100% Crop)

iso3200.jpg iso3200raw.jpg

ISO 6400 (100% Crop)

ISO 6400 (100% Crop)

iso6400.jpg iso6400raw.jpg

ISO 12800 (100% Crop)

ISO 12800 (100% Crop)

iso12800.jpg iso12800raw.jpg

ISO 25600 (100% Crop)

ISO 25600 (100% Crop)

iso25600.jpg iso25600.jpg

ISO 51200 (100% Crop)

ISO 51200 (100% Crop)

iso51200.jpg iso51200.jpg

ISO 102400 (100% Crop)

ISO 102400 (100% Crop)

iso102400.jpg iso102400.jpg

ISO 204800 (100% Crop)

ISO 204800 (100% Crop)

iso204800.jpg iso204800.jpg

ISO 409600 (100% Crop)

ISO 409600 (100% Crop)

iso409600.jpg iso409600.jpg

ISO 819200 (100% Crop)

ISO 819200 (100% Crop)

iso819200.jpg iso819200.jpg

Night

The Canon EOS-1D X Mark III has a shutter speed range of 30 - 1/8000 sec. and a Bulb setting for even longer exposures.

Night
Night