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 R3
VS
Sensor area
864 mm²
EOS-1D X Mark III864 mm²
EOS R3- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The EOS-1D X Mark III and EOS R3 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
EOS-1D X Mark IIIMetricEOS R3
20.1 MPEffective pixels24.1 MP
36 × 24Sensor36 × 24
6.56 µmPixel pitch5.99 µm
42.99 µm²Pixel area35.85 µm²
2.33 MP/cm²Pixel density2.79 MP/cm²
1Crop factor1
5,472 × 2,286Maximum video6,000 × 3,164
1,440 gWeight1,015 g
CFexpress type BStorageSD/SDHC/SDXC/UHS-II/CFexpress Type B
LP-E19 lithium-ion battery Li-ion batteryBatteryRechargeable Li-ion Battery LP-E19 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 and EOS R3 have the same sensor area. The EOS R3 has the lighter body. The EOS R3 has the higher effective resolution. The EOS R3 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose EOS R3
Released in 2021, EOS R3 has about 864 mm² of sensor area, 24.1 MP effective resolution, and a 1,015 g body. Use these values to narrow the field, not as an overall image-quality score.