Reasons to choose EOS R1
Released in 2024, EOS R1 has about 864 mm² of sensor area, 24.2 MP effective resolution, and a 1,115 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon EOS R1
vs Canon EOS R6 Mark III
VS
Sensor area
864 mm²
EOS R1858 mm²
EOS R6 Mark III- Area ratio
- 1.01:1
- Absolute difference
- 6 mm²
- Relative difference
- 0.7%
The EOS R1 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
These cameras were released 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
EOS R1MetricEOS R6 Mark III
24.2 MPEffective pixels32.5 MP
36 × 24Sensor35.9 × 23.9
5.98 µmPixel pitch5.14 µm
35.7 µm²Pixel area26.4 µm²
2.8 MP/cm²Pixel density3.79 MP/cm²
1Crop factor1
6,000 × 3,164Maximum video6,960 × 4,640 / 30p
1,115 gWeight699 g
CFexpress Type B (CFexpress 2.0)StorageSD UHS-II / CFexpress Type B
LP-E19 Lithium-Ion battery Li-ion batteryBatteryLP-E6P 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 R1 has the larger sensor area. The EOS R6 Mark III has the lighter body. The EOS R6 Mark III has the higher effective resolution. The EOS R6 Mark III is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose EOS R6 Mark III
Released in 2025, EOS R6 Mark III has about 858 mm² of sensor area, 32.5 MP effective resolution, and a 699 g body. Use these values to narrow the field, not as an overall image-quality score.