What is the sensor size of the OM System OM-3?
The OM System OM-3 is a digital camera that has a Four Thirds sensor at its core. This imager measures 17.3mm in width and 13.0mm in height, so that the total imaging area of the sensor amounts to 225 mm2.
The OM-3 provides an image resolution of 20.2 megapixels, based on 5 184 horizontal pixels and 3 888 vertical pixels.
Sensor size comparison with a film slide
The sensor diagonal measures 21.6mm, which gives rise to a format factor (or crop factor) of 2.0. Hence, the OM System OM-3 is a crop-sensor camera, as its sensor is smaller than a traditional 35mm film slide or negative.
Sensor specs and performance
The table below compares the sensor specs of the OM System OM-3 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.
| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | OM System OM-3 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.7 | 1852 | 78 | |
| 2. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
| 3. | Olympus E-M1 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1356 | 76 | |
| 4. | Olympus E-M5 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
| 5. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
| 6. | OM System OM-1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.6 | 1749 | 78 | |
| 7. | OM System OM-5 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.4 | 13.4 | 1622 | 78 | |
| 8. | OM System OM-5 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.4 | 13.7 | 1889 | 78 | |
| 9. | Panasonic G9 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.1 | 12.8 | 1138 | 74 | |
| 10. | Panasonic G90 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1273 | 75 | |
| 11. | Sony A7C | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3407 | 95 | |
| Note: DXO values in italics represent estimates based on sensor size and age. | |||||||||||
In the United States, the OM-3 was initially launched in February 2025 at a price of $1,999.
Check OM-3 price at
amazon.com
Camera to camera comparisons
In case you are interested in seeing how this camera compares to another one, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1Ds Mark II vs Nikon Z6
- Canon G12 vs Nikon Z6
- Fujifilm X-E1 vs Nikon Z6
- Fujifilm X-E4 vs OM System OM-3
- Fujifilm X100VI vs OM System OM-3
- Nikon Z6 vs Panasonic GX85
- Nikon Z6 vs Pentax K-70
- Nikon Z6 vs Sony A7C II
- Nikon Z9 vs OM System OM-3
- OM System OM-3 vs OM System OM-5 II
- OM System OM-3 vs Panasonic G9
- OM System OM-3 vs Pentax WG-8
| Camera Model | OM System OM-3 | |
|---|---|---|
| Camera Type | Mirrorless system camera | |
| Camera Lens | Micro Four Thirds lenses | |
| Launch Date | February 2025 | |
| Launch Price | USD 1 999 | |
| Sensor Specs | ||
| Sensor Technology | Stacked BSI-CMOS | |
| Sensor Format | Four Thirds Sensor | |
| Sensor Size | 17.3 x 13.0 mm | |
| Sensor Area | 225 mm2 | |
| Sensor Diagonal | 21.6 mm | |
| Crop Factor | 2.0x | |
| Sensor Resolution | 20.2 Megapixels | |
| Image Resolution | 5 184 x 3 888 pixels | |
| Pixel Pitch | 3.34 μm | |
| Pixel Density | 8.96 MP/cm2 | |
| Moiré control | no AA filter | |
| Movie Capability | 4K/60p Video | |
| ISO Setting | 80 - 25 600 ISO | |
| ISO Boost | 80 - 102 400 ISO | |
| Image Processor | TruePic X | |
| Screen Specs | ||
| Viewfinder Type | Electronic viewfinder | |
| Viewfinder Field of View | 100% | |
| Viewfinder Magnification | 0.69x | |
| Viewfinder Resolution | 2360k dots | |
| Top-Level Screen | no Top Display | |
| LCD Framing | Live View | |
| LCD Size | 3.0 inch | |
| LCD Resolution | 1640k dots | |
| LCD Attachment | Swivel screen | |
| V-logging Friendliness | Front-flip possible | |
| Touch Input | Touchscreen | |
| Shooting Specs | ||
| Focus System | On-Sensor Phase-detect | |
| Manual Focusing Aid | Focus Peaking | |
| Maximum Shutter Speed | 1/8000s | |
| Continuous Shooting | 6 shutter flaps/s | |
| Shutter Life Expectancy | 200 000 actuations | |
| Silent Shooting | Electronic Shutter | |
| Time Lapse Photography | Intervalometer Built-in | |
| Image Stabilization | In-body stabilization | |
| Fill Flash | no On-Board Flash | |
| Storage Medium | SDXC cards | |
| Single or Dual Card Slots | Single card slot | |
| UHS card support | UHS-II | |
| Connectivity Specs | ||
| External Flash | Hotshoe | |
| USB Connector | USB 3.0 | |
| HDMI Port | micro HDMI | |
| Microphone Port | External MIC port | |
| Headphone Socket | Headphone port | |
| Wifi Support | Wifi built-in | |
| Bluetooth Support | Bluetooth built-in | |
| Body Specs | ||
| Environmental Sealing | Weathersealed body | |
| Battery Type | OM System BLX-1 power pack | |
| Battery Life (CIPA) | 590 shots per charge | |
| In-Camera Charging | USB charging | |
| Body Dimensions |
139 x 89 x 46 mm (5.5 x 3.5 x 1.8 in) |
|
| Camera Weight | 496 g (17.5 oz) | |
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