What is the crop factor of the Olympus E-M1 III?
The Olympus OM-D E-M1 Mark III is equipped with a Four Thirds sensor, whose diagonal measures 21.6mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 2.0.
The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.
Sensor size comparison with a film slide
With a crop factor of 2.0, the sensor in the Olympus E-M1 III is smaller than the receptor area of a 35mm film slide or negative. As a result, a lens that is attached to the Olympus E-M1 III will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 25mm lens on the Olympus E-M1 III will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (25mm * 2.0 = 50mm).
Sensor specs and performance
The table below compares the sensor specs of the Olympus E-M1 III 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. | Olympus E-M1 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1356 | 76 | |
2. | Olympus E-M5 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
3. | Olympus E-M1X | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1254 | 75 | |
4. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
5. | Olympus E-M1 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.7 | 757 | 73 | |
6. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
7. | Panasonic GH5 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.7 | 13.1 | 1136 | 79 | |
8. | Panasonic G95 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1273 | 75 | |
9. | Panasonic G9 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.1 | 12.8 | 1138 | 74 | |
10. | Panasonic GH5 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.9 | 13.0 | 807 | 77 | |
11. | Panasonic GX8 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.5 | 12.6 | 806 | 75 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
In the United States, the E-M1 III was initially launched in February 2020 at a price of $1,799.
Camera to camera comparisons
In case you would like to check on the differences and similarities with other camera models, 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 1D X vs Nikon Z6
- Canon 30D vs Nikon Z6
- Canon SX540 vs Nikon Z6
- Fujifilm XF10 vs Nikon Z6
- Leica M10 vs Nikon Z6
- Nikon Z6 vs Panasonic L1
- Olympus E-M1 III vs Panasonic FZ200
- Olympus E-M1 III vs Panasonic GH5 II
- Olympus E-M1 III vs Panasonic TZ200
- Olympus E-M1 III vs Pentax K-5
- Olympus E-M1 III vs Ricoh WG-60
- Olympus E-M1 III vs Sony A7R IIIA
Camera Model | Olympus E-M1 III | |
---|---|---|
Camera Type | Mirrorless system camera | |
Camera Lens | Micro Four Thirds lenses | |
Launch Date | February 2020 | |
Launch Price | USD 1 799 | |
Sensor Specs | ||
Sensor Technology | 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/30p Video | |
ISO Setting | 200 - 25 600 ISO | |
ISO Boost | 64 - 25 600 ISO | |
Image Processor | TruePic IX | |
Screen Specs | ||
Viewfinder Type | Electronic viewfinder | |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.74x | |
Viewfinder Resolution | 2360k dots | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 3.0 inch | |
LCD Resolution | 1037k 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 | 18 shutter flaps/s | |
Shutter Life Expectancy | 400 000 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 | Dual card slots | |
UHS card support | Single UHS-II | |
Connectivity Specs | ||
External Flash | Hotshoe | |
Studio Flash | PC Sync socket | |
USB Connector | USB 3.1 | |
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 | Olympus BLH-1 power pack | |
Battery Life (CIPA) | 420 shots per charge | |
In-Camera Charging | USB charging | |
Body Dimensions |
134 x 91 x 69 mm (5.3 x 3.6 x 2.7 in) |
|
Camera Weight | 580 g (20.5 oz) |
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