Reasons to choose EOS-1D Mark IV
Released in 2009, EOS-1D Mark IV has about 519 mm² of sensor area, 16.1 MP effective resolution, and a 1,230 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon EOS-1D Mark IV
vs Canon EOS M
VS
Sensor area
519 mm²
EOS-1D Mark IV332 mm²
EOS M- Area ratio
- 1.56:1
- Absolute difference
- 187 mm²
- Relative difference
- 56.2%
The EOS-1D Mark IV 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 3 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
EOS-1D Mark IVMetricEOS M
16.1 MPEffective pixels18 MP
27.9 × 18.6Sensor22.3 × 14.9
5.68 µmPixel pitch4.3 µm
32.23 µm²Pixel area18.46 µm²
3.1 MP/cm²Pixel density5.42 MP/cm²
1.29Crop factor1.61
—Maximum video—
1,230 gWeight298 g
CompactFlash type I, CompactFlash type II, SDHC, Secure DigitalStorageSD/SDHC/SDXC
Lithium-Ion LP-E4 rechargeable battery Li-ion batteryBatteryLithium-Ion LP-E12 rechargeable 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 Mark IV has the larger sensor area. The EOS M has the lighter body. The EOS M has the higher effective resolution. The EOS M is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose EOS M
Released in 2012, EOS M has about 332 mm² of sensor area, 18 MP effective resolution, and a 298 g body. Use these values to narrow the field, not as an overall image-quality score.