Reasons to choose OM-3
Released in 2025, OM-3 has about 225 mm² of sensor area, 20.4 MP effective resolution, and a 496 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Olympus OM-3
vs Olympus OM-5 II
VS
Sensor area
225 mm²
OM-3225 mm²
OM-5 II- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The OM-3 and OM-5 II have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
Key specification differences
OM-3MetricOM-5 II
20.4 MPEffective pixels20.4 MP
17.3 × 13Sensor17.3 × 13
3.32 µmPixel pitch3.32 µm
11.02 µm²Pixel area11.02 µm²
9.07 MP/cm²Pixel density9.07 MP/cm²
2Crop factor2
4,096 × 2,160Maximum video4,096 × 2,160
496 gWeight418 g
SD/SDHC/SDXC (UHS-II)StorageSD/SDHC/SDXC (UHS-II)
BLX-1 Lithium-Ion battery Li-ion batteryBatteryBLS-50 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 OM-3 and OM-5 II have the same sensor area. The OM-5 II has the lighter body. The OM-3 and OM-5 II have the same effective resolution. The OM-3 and OM-5 II were both released in 2025. Also consider the lens system and subjects you shoot.
Reasons to choose OM-5 II
Released in 2025, OM-5 II has about 225 mm² of sensor area, 20.4 MP effective resolution, and a 418 g body. Use these values to narrow the field, not as an overall image-quality score.