Reasons to choose EOS-1D X Mark III
Released in 2020, EOS-1D X Mark III has about 864 mm² of sensor area, 20.1 MP effective resolution, and a 1,440 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon EOS-1D X Mark III
vs Canon EOS R6
VS
Sensor area
864 mm²
EOS-1D X Mark III858 mm²
EOS R6- Area ratio
- 1.01:1
- Absolute difference
- 6 mm²
- Relative difference
- 0.7%
The EOS-1D X Mark III has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
Key specification differences
EOS-1D X Mark IIIMetricEOS R6
20.1 MPEffective pixels20.1 MP
36 × 24Sensor35.9 × 23.9
6.56 µmPixel pitch6.53 µm
42.99 µm²Pixel area42.69 µm²
2.33 MP/cm²Pixel density2.34 MP/cm²
1Crop factor1
5,472 × 2,286Maximum video3,840 × 2,160
1,440 gWeight680 g
CFexpress type BStorageSD/SDHC/SDXC/UHS-II
LP-E19 lithium-ion battery Li-ion batteryBatteryLP-E6NH lithium-ion battery Li-ion battery
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The EOS-1D X Mark III has the larger sensor area. The EOS R6 has the lighter body. The EOS-1D X Mark III and EOS R6 have the same effective resolution. The EOS-1D X Mark III and EOS R6 were both released in 2020. Also consider the lens system and subjects you shoot.
Reasons to choose EOS R6
Released in 2020, EOS R6 has about 858 mm² of sensor area, 20.1 MP effective resolution, and a 680 g body. Use these values to narrow the field, not as an overall image-quality score.