In depth comparison and review of Olympus OM-D E-M1X and Sony Alpha7s III ILCE-7SM3. 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-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 14.68 cm | 9.69 cm |
| Width | 14.44 cm | 12.89 cm |
| Depth | 7.54 cm | 8.08 cm |
| Weight | 849 g | 699 g |
| Weight Details | Camera with battery: 849 g Camera with battery and memory card: 997 g |
Camera with battery and memory card: 699 g |
| Body Material | Magnesium alloy | Magnesium alloy |
| Enclosure Colour | Black | - |
| Protection | Splashproof, freezeproof, dust-resistant, IPX1 | Dust-resistant, moisture-resistant |
| Digital Zoom | - | 4x |
| Navigation | GPS receiver | - |
| SENSOR | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Sensor Resolution | 20.4 Megapixel | 12.1 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | Exmor R CMOS |
| Total Pixels | 21,770,000 pixels | 12,900,000 pixels |
| Effective Sensor Resolution | 20,400,000 pixels | 12,100,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | Full Frame (35.6 x 23.8 mm) |
| Frame Rate (Max Resolution) | 24 fps | 120 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Supersonic Wave Filter (SWF) | Dust Reduction (image sensor vibration), Anti-Dust coating |
| Image Stabiliser | Optical (5-axis image sensor shift mechanism) | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Barometer, magnetometer, temperature | Digital level metre |
| PROCESSOR | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Image Processor | Dual TruePic VIII | BIONZ XR |
|---|
| LENS | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Lens Mounting Type | Micro Four Thirds | Sony E-mount |
|---|
| FOCUSING | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 121 | 759 |
| Auto Focus Features | Focus Peaking function, Frequency Accelerating Sensor Technology (F.A.S.T.) AF system | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Touch Area AF, Eye detection AF, Subject detection AF | Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF |
| Face Detection | Eye Detect AF, face-priority AF function | Face Recognition, face-priority AF function |
| VIEWFINDER | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Viewfinder Type | Electronic - LCD | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.64" |
| Viewfinder Resolution | 2,360,000 pixels | 9,437,184 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 1.65x | 0.9x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -4 to +3 |
| Field of View Crop Factor | 2 | - |
| Features | Auto eye sensor | - |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| ISO (Max) | 25600 | 409600 |
|---|---|---|
| Native ISO | 200-25600 | - |
| Extended ISO (Max) | - | 409600 |
| Extended ISO (Min) | 64 | 40 |
| Light Sensitivity | ISO 100, ISO 64, ISO auto (200-6400), ISO 200-25600 | ISO 204800, ISO 409600, ISO 80-102400, ISO 40 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 324 | 1200 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | Art Filter bracketing, focus bracketing, ISO sensitivity bracketing, Flash Exposure Bracketing, white balance bracketing | Dynamic Range Bracketing |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 3000K - 7500K | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K |
| Shutter Type | Mechanical electronically-controlled | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/8000 sec |
| Min Shutter Speed | 60 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1, 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | - | 3, 5 or 9 steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/250sec | 1/250sec |
| Exposure Range | EV -2-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,037,000 pixels | 1,440,000 pixels |
| Display Form Factor | Rotating | Folding |
| Display Features | - | Display brightness control |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Digital Video Format | H.264, MOV | H.264, XAVC S, H.265, XAVC HS |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 4096 x 2160 | 3840 x 2160 |
| Audio Signal Format | - | AAC |
| Microphone Operation Mode | Stereo | Stereo |
| MEMORY | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Memory Card Slot | Dual SD card | Dual SD card, dual 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-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress |
| Memory Card Included | No | No |
| Image Storage | RAW 5184 x 3888 JPEG 5184 x 3888 RAW 8160 x 6120 - High Resolution Mode JPEG 8160 x 6120 - High Resolution Mode JPEG 5760 x 4320 - High Resolution Mode |
JPEG 4240 x 2832 JPEG 2768 x 1848 JPEG 2128 x 1416 JPEG 1376 x 920 JPEG 3776 x 2832 JPEG 2464 x 1848 JPEG 1888 x 1416 JPEG 1232 x 920 JPEG 4240 x 2348 JPEG 2768 x 1550 JPEG 2128 x 1200 JPEG 1376 x 776 JPEG 2832 x 2832 JPEG 1840 x 1840 JPEG 1408 x 1408 JPEG 912 x 912 |
| Video Capture | - | XAVC HS - 3840 x 2160 p - 120 fps XAVC HS - 3840 x 2160 p - 60 fps XAVC HS - 3840 x 2160 p - 100 fps - 200Mbps XAVC HS - 3840 x 2160 p - 50 fps XAVC HS - 3840 x 2160 p - 24 fps XAVC S - 3840 x 2160 p - 120 fps XAVC S - 3840 x 2160 p - 60 fps XAVC S - 3840 x 2160 p - 30 fps XAVC S - 3840 x 2160 p - 24 fps XAVC S - 3840 x 2160 p - 100 fps XAVC S - 3840 x 2160 p - 50 fps XAVC S - 3840 x 2160 p - 25 fps XAVC S HD - 1920 x 1080 p - 120 fps XAVC S HD - 1920 x 1080 p - 60 fps XAVC S HD - 1920 x 1080 p - 30 fps XAVC S HD - 1920 x 1080 p - 24 fps XAVC S HD - 1920 x 1080 p - 100 fps XAVC S HD - 1920 x 1080 p - 50 fps XAVC S HD - 1920 x 1080 p - 25 fps |
| BATTERY AND CHARGING | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Battery Type | Olympus BLH-1 Lithium Ion | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | 2 x Olympus BLH-1 Li-ion rechargeable battery - 1720 mAh (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 2580 shots (quick sleep mode) Photo shooting - 870 shots Video recording - 170 minutes |
Photo shooting - 510 shots (EVF on) Photo shooting - 600 shots (LCD Monitor on) Video recording - 80 minutes (EVF on) Video recording - 135 minutes (LCD Monitor on) |
| CONNECTIONS | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Interface | HDMI, USB 3.0, IEEE 802.11a/b/g/n/ac, Bluetooth 4.2 | HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view, QR code scanning | Remote control via mobile devices, Wireless Image Transfer, PC Remote functions via Wi-Fi |
| Print Standard | DPOF support, Exif Print support | Exif Print support, PRINT Image Matching |
| Flash Terminal | Hot shoe | 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) Remote control (sub-mini phone 2.5 mm) |
USB (USB Type-C) HDMI output (19 pin HDMI Type A) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
| FEATURES | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 15 frames per second, 60 frames per second | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second |
| HDR Mode | Auto HDR mode | - |
| Additional Features | Built-in speaker, auto power save, relay recording, USB charging, high-speed recording, Time-Lapse recording, Focus Stacking, Flickering Reduction function, 50-megapixel High Resolution mode | Built-in speaker, digital image rotation, camera orientation detection, histogram display, shadow point display, interval shooting mode, highlight point display, Dynamic Range Optimizer, USB charging, built-in help guide, Chromatic Aberration Compensation (CAC), HDR image enhancement technology, Intelligent AUTO (iAUTO), fast motion recording, Lens Distortion Compensation (LDC), noise reduction over long exposures, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, slow motion recording, peripheral shading correction, anti-flicker, Hybrid Log-Gamma (HLG) recording |
| OTHERS | Olympus OM-D E-M1X | Sony Alpha7s III ILCE-7SM3 |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, cable clip, cable protector, hot shoe cover, USB-C cable, battery holder | - |
|---|---|---|
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
| Service & Support | Limited warranty - 2 years | - |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
