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.
Side-by-side comparison
Canon EOS R6 Mark III
vs Leica SL3-S
VS
Sensor area
858 mm²
EOS R6 Mark III864 mm²
SL3-S- Area ratio
- 1.01:1
- Absolute difference
- 6 mm²
- Relative difference
- 0.7%
The SL3-S 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 R6 Mark IIIMetricSL3-S
32.5 MPEffective pixels24.6 MP
35.9 × 23.9Sensor36 × 24
5.14 µmPixel pitch5.93 µm
26.4 µm²Pixel area35.12 µm²
3.79 MP/cm²Pixel density2.85 MP/cm²
1Crop factor1
6,960 × 4,640 / 30pMaximum video5,952 × 3,968
699 gWeight768 g
SD UHS-II / CFexpress Type BStorageSD/SDHC/SDXC (UHS-II), CFexpress Type B
LP-E6P Li-ion batteryBatteryBP-SCL6 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 SL3-S 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 and SL3-S were both released in 2025. Also consider the lens system and subjects you shoot.
Reasons to choose SL3-S
Released in 2025, SL3-S has about 864 mm² of sensor area, 24.6 MP effective resolution, and a 768 g body. Use these values to narrow the field, not as an overall image-quality score.