Reasons to choose EOS 7D Mark II
Released in 2014, EOS 7D Mark II has about 336 mm² of sensor area, 20.2 MP effective resolution, and a 910 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon EOS 7D Mark II
vs Canon EOS M3
VS
Sensor area
336 mm²
EOS 7D Mark II332 mm²
EOS M3- Area ratio
- 1.01:1
- Absolute difference
- 4 mm²
- Relative difference
- 1.1%
The EOS 7D Mark II 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 7D Mark IIMetricEOS M3
20.2 MPEffective pixels24.2 MP
22.4 × 15Sensor22.3 × 14.9
4.08 µmPixel pitch3.71 µm
16.63 µm²Pixel area13.73 µm²
6.01 MP/cm²Pixel density7.28 MP/cm²
1.61Crop factor1.61
1,920 × 1,080Maximum video1,920 × 1,080
910 gWeight366 g
SD/SDHC/SDXC/Type I CompactFlashStorageSD/SDHC/SDXC
Battery Pack LP-E6N (or LP-E6)BatteryLi-ion Battery LP-E17 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 7D Mark II has the larger sensor area. The EOS M3 has the lighter body. The EOS M3 has the higher effective resolution. The EOS M3 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose EOS M3
Released in 2015, EOS M3 has about 332 mm² of sensor area, 24.2 MP effective resolution, and a 366 g body. Use these values to narrow the field, not as an overall image-quality score.