In depth comparison and review of Olympus OM-D E-M1 Mark III and Canon EOS R3. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.
| DESIGN AND DIMENSIONS | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 6K - mirrorless system with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.09 cm | 14.26 cm |
| Width | 13.41 cm | 15 cm |
| Depth | 6.89 cm | 8.72 cm |
| Weight | 504 g | 822 g |
| Weight Details | Camera only: 504 g Camera with battery and memory card: 580 g |
Camera body only: 822 g Camera with battery and memory card: 1.015 kg |
| Body Material | Magnesium alloy | Magnesium alloy, fibreglass-reinforced polycarbonate |
| Enclosure Colour | Black | - |
| Protection | Splashproof, freezeproof, dust-resistant | Dust-resistant, slash-resistant |
| Navigation | - | GPS/GLONASS/QZSS receiver |
| SENSOR | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
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| Sensor Resolution | 20.4 Megapixel | 24.1 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | BSI-CMOS |
| Total Pixels | 21,800,000 pixels | 24,100,000 pixels |
| Effective Sensor Resolution | 20,400,000 pixels | 26,700,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | Full Frame (36 x 24 mm) |
| Frame Rate (Max Resolution) | 24 fps | 60 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Self Cleaning Sensor Unit |
| Image Stabiliser | Optical (5-axis image sensor shift mechanism) | Optical (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | - |
| PROCESSOR | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
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| Image Processor | TruePic IX | DIGIC X |
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| LENS | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
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| Lens Mounting Type | Micro Four Thirds | Canon RF |
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| FOCUSING | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
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| Auto Focus | TTL contrast and phase detection | Dual Pixel CMOS AF II |
|---|---|---|
| Auto Focus Points (Zones) Qty | 121 | 1053 |
| Auto Focus Features | Focus Peaking function | - |
| AE/AF Control | Face-priority AF, Eye detection AF | Eye Control, Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF, Animal-tracking AF, Vehicle-tracking AF |
| Face Detection | Eye Detect AF, face-priority AF function | Eye Detect AF, Face Detection AF/AE |
| VIEWFINDER | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Viewfinder Type | Electronic - LCD | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | 2,360,000 pixels | 5,760,000 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 1.48x | 0.76x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -4 to +2 |
| Viewfinder Information | Shutter speed, exposure compensation, AF-in-focus, aperture, white balance, Exposure Mode, image stabilizer, battery status, AF lock, electronic level, area AF frame, metering mode | - |
| Field of View Crop Factor | 2 | 1.0 |
| Features | Viewfinder brightness control, colour temperature control | - |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| ISO (Max) | 25600 | 204800 |
|---|---|---|
| Native ISO | 200-6400 | 100-102400 |
| Extended ISO (Max) | 25600 | 204800 |
| Extended ISO (Min) | 64 | 50 |
| Light Sensitivity | ISO auto (64-6400), ISO 64-25600 | ISO 50, ISO auto, ISO 204800, ISO 100-102400 |
| Exposure Metering | Multi-segment, centre-weighted, spot, highlight spot, shadow spot | Evaluative, centre-weighted, spot (2.9%), partial (5.9%) |
| Exposure Metering Zones | 324 | 384 |
| Exposure Modes | Bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, flexible-priority AE |
| Bracketing Modes | Art Filter bracketing, focus bracketing, ISO sensitivity bracketing, Flash Exposure Bracketing, white balance bracketing | Focus bracketing |
| Special Effects | Sepia, Monotone, Black & White Red filter, Black & White Yellow filter, Vivid, Black & White Orange filter, soft focus, natural, Black & White Green filter, Flat, portrait, Water Colour, Diorama, Cross Process, partial colour, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, Dramatic Tone, Bleach Bypass, High Key, Low Key, Key Line, Vintage, e-Portrait | Neutral, Faithful, monochrome, landscape, portrait, Standard, Fine Detail |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Fluorescent, sunlight, tungsten light, Flash, shade, overcast, Underwater, 2000K - 14000K | Cloudy, tungsten light, Flash, daylight, shade, 2500K - 10000K, fluorescent light (white) |
| Shutter Type | Mechanical, electronic | Mechanical, electronic |
| Max Shutter Speed | 1/32000 sec | 1/64000 sec |
| Min Shutter Speed | 60 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1, 1/2 or 1/3 EV steps | ±3 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 5 steps in 1/3, 2/3 or 1 EV steps | 3 steps in 1/2 or 1/3 EV steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/250sec | 1/200sec, 1/180 sec, 1/250sec |
| Exposure Range | EV -2-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
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| Type | 3" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,037,000 pixels | 4,150,000 pixels |
| Display Form Factor | Rotating | Rotating |
| Display Features | Display brightness control, display colour control | Display brightness control, anti-smudge coating |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Digital Video Format | MJPEG, H.264 | MOV, RAW, IPB, ALL-I |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG, C-RAW, HEIF, RAW + HEIF |
| Max Video Resolution | 4096 x 2160 | 6000 x 3164 |
| Audio Signal Format | Linear PCM | - |
| Microphone Operation Mode | Stereo | Mono |
| Microphone Features | Wind noise reduction | - |
| MEMORY | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Memory Card Slot | Dual SD card | SD card, CFexpress |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress |
| Memory Card Included | No | No |
| Image Storage | 5184 x 3888 | 6000 x 4000 3984 x 2656 2976 x 1984 2400 x 1600 3744 x 2496 2400 x 1600 5328 x 4000 3552 x 2664 2656 x 1992 2112 x 1600 6000 x 3368 3984 x 2240 2976 x 1680 2400 x 1344 4000 x 4000 2656 x 2656 1984 x 1984 1600 x 1600 |
| Video Capture | 4096 x 2160 p - 24 fps - 237Mbps 3840 x 2160 p - 30 fps 3840 x 2160 p - 25 fps 3840 x 2160 p - 24 fps 1920 x 1080 p - 30 fps 1920 x 1080 p - 25 fps 1920 x 1080 p - 24 fps 1920 x 1080 p - 60 fps 1920 x 1080 p - 50 fps 1280 x 720 p - 60 fps 1280 x 720 p - 50 fps 1280 x 720 p - 30 fps 1280 x 720 p - 25 fps 1280 x 720 p - 24 fps AVI - 640 x 480 p - 30 fps |
RAW - 6000 x 3164 p 4096 x 2160 p 3840 x 2160 p 1920 x 1080 p |
| BATTERY AND CHARGING | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Battery Type | Olympus BLH-1 Lithium Ion | Canon LP-E19 Lithium Ion |
|---|---|---|
| Details | Olympus BLH-1 Li-ion rechargeable battery - 1720 mAh (included) | Canon LP-E19 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 420 shots Video recording - 85 minutes |
Photo shooting - 620 shots (Power Save LVF Shooting mode) Photo shooting - 860 shots (Power Save LCD Shooting mode) Photo shooting - 440 shots (EVF on) Photo shooting - 760 shots (LCD Monitor on) |
| CONNECTIONS | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Interface | HDMI, USB 3.0, IEEE 802.11a/b/g/n/ac, Bluetooth 4.2 | HDMI, USB-C, IEEE 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless video upload to cloud server, wireless image upload to cloud server, wireless image printing |
| Print Standard | DPOF support, Exif Print support | DPOF support, Exif Print support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe, PC terminal | Hot shoe |
| Connector Type | USB 3.0 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
USB 3.2 Gen 2 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Network (RJ-45) |
| FEATURES | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 10 frames per second, 15 frames per second, 60 frames per second, 18 frames per second | 30 frames per second, 12 frames per second |
| Additional Features | Built-in speaker, RGB primary colour filter, auto power save, sharpness control, histogram display, in-camera red-eye removal, cropping an image, resizing an image, saturation control, shadow point display, highlight point display, in-camera film editing, contrast control, digital tele-converter, USB charging, HDR image enhancement technology, high-speed recording, Time-Lapse recording, silent shooting, GPS via mobile, Flicker detection, multiple exposure capture, Focus Stacking, 80-megapixel High Resolution mode | RGB primary colour filter, auto power save, depth-of-field preview button, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, highlight point display, Dust Delete Data system, USB charging, in-camera RAW processing, Multi-Frame Noise Reduction, HDR image enhancement technology, high-speed recording, silent shooting, slow motion recording, multiple exposure capture, anti-flicker, double slot recording, Flickering Reduction function, firmware upgradable, assignable buttons, HEIF to Jpeg conversion, voice memo recording |
| OTHERS | Olympus OM-D E-M1 Mark III | Canon EOS R3 |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable, cable clip | Battery charger, body cap, neck strap, eyecup, cable protector, hot shoe cover, USB-C cable |
|---|---|---|
| Software | - | Canon Picture Style Editor, Canon Digital Photo Professional 4.15, Canon EOS Utility 3, WFT Utility, EOS Lens Registration Tool, EOS Web Service Registration Tool, Canon Camera connect app, Mobile File Transfer app |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
| Service & Support | - | Limited warranty - 1 year |
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