Detailed comparison and review of Olympus OM-D E-M1 and Sony Alpha7R III ILCE-7RM3. With our comprehensive overview, you can simply compare design, sensors, proximity characteristics, memory capacities, but also other key features of both cameras and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the camera that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Product Type | Digital camera - 1080p - mirrorless system | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.35 cm | 9.56 cm |
| Width | 13.04 cm | 12.69 cm |
| Depth | 6.31 cm | 7.37 cm |
| Weight | 443 g | 572 g |
| Weight Details | - | Camera body only: 572 g Camera with battery and memory card: 675 g |
| Body Material | Magnesium alloy | Magnesium alloy |
| Enclosure Colour | Silver | Black | Black |
| Protection | Splashproof, freezeproof, dust-resistant | Dust-resistant, moisture-resistant |
| Digital Zoom | - | 4x |
| SENSOR | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Sensor Resolution | 16.3 Megapixel | 42.4 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | Exmor R CMOS |
| Total Pixels | 16,800,000 pixels | 43,600,000 pixels |
| Effective Sensor Resolution | 16,300,000 pixels | 42,400,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | Full Frame (35.9 x 24 mm) |
| Frame Rate (Max Resolution) | - | 30 fps |
| Sensor Dust Reduction | - | Yes |
| Sensor Features | - | 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 | Digital level metre | Digital level metre |
| PROCESSOR | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Image Processor | TruePic VII | BIONZ X |
|---|
| LENS | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Lens Mounting Type | Micro Four Thirds | Sony E-mount |
|---|
| FOCUSING | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | - | 399 |
| Auto Focus Features | - | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Eye detection AF | Flex Focus Point, Eye detection AF, Zone AF |
| Face Detection | Yes | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Viewfinder Type | Built-in - electronic | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | Colour | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | 2,360,000 pixels | 3,686,400 pixels |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 1.48x | 0.78x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -4 to +3 |
| Field of View Crop Factor | 2 | - |
| Features | - | Viewfinder brightness control, colour temperature control |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| ISO (Max) | 25600 | 102400 |
|---|---|---|
| Light Sensitivity | ISO 200-25600, ISO auto (200-25600) | ISO 50, ISO 102400, ISO auto (100-12800), ISO 100-32000 |
| 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, ISO sensitivity bracketing | Dynamic Range Bracketing, white balance bracketing |
| Shooting Programs | Landscape, portrait mode, macro, beach/snow, landscape-portrait, Children, fireworks, 3D image, panorama assist, night scene, sports mode, sunset, candle, high key, night scene with portrait, anti shake, low key, documents, nature macro, e-portrait, fisheye converter, wide converter, macro converter | - |
| Special Effects | Black & White, Sepia, soft focus, Water Colour, Diorama, Cross Process, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, Dramatic Tone, Key Line, Star Light, Defocus, White Edge | Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 2000K - 14000K | Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) |
| 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, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | - | 1/250sec |
| Exposure Range | EV 2-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,037,000 pixels | 1,440,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Contrast control, display brightness control, display colour control | Display brightness control, Peaking AF display, Touch AF |
| FLASH | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Camera Flash | Detachable flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 7 | - |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator, flash +/- compensation, wireless off-camera control, flash exposure bracketing | AF illuminator |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Digital Video Format | AVI, MJPEG, H.264, MOV | AVCHD, XAVC S |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | Dolby Digital AC-3 (2 channel), Linear PCM |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Wind noise reduction, sensitivity control | - |
| MEMORY | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Memory Card Slot | SD card | Memory Stick PRO Duo card, SD card |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card | SD Memory Card, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card |
| Memory Card Included | No | No |
| Image Storage | RAW 4608 x 3456 - 17 MB JPEG 4608 x 3456 - 7.5 MB JPEG 4608 x 3456 - 3.5 MB JPEG 2560 x 1920 - 1.1 MB |
7952 x 5304 7952 x 4472 5168 x 3448 5168 x 2912 3984 x 2656 3984 x 2240 2592 x 1728 2592 x 1456 |
| Video Capture | MOV - 1920 x 1080 - 30 fps - 24Mbps MOV - 1920 x 1080 - 30 fps - 16Mbps MOV - 1280 x 720 - 30 fps - 12Mbps MOV - 1280 x 720 - 30 fps - 8Mbps MJPEG - 1280 x 720 - 30 fps MJPEG - 640 x 480 - 30 fps |
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps AVCHD - 1920 x 1080 i - 60 fps - 17Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps XAVC S - 3840 x 2160 p - 30 fps - 100Mbps XAVC S - 3840 x 2160 p - 24 fps - 100Mbps XAVC S - 3840 x 2160 p - 30 fps - 60Mbps XAVC S - 3840 x 2160 p - 24 fps - 60Mbps XAVC S - 1920 x 1080 p - 60 fps - 100Mbps XAVC S - 1920 x 1080 p - 120 fps - 60Mbps XAVC S - 1920 x 1080 p - 60 fps - 50Mbps XAVC S - 1920 x 1080 p - 30 fps - 50Mbps XAVC S - 1920 x 1080 p - 24 fps - 50Mbps XAVC S - 1920 x 1080 p - 60 fps - 25Mbps XAVC S - 1920 x 1080 p - 30 fps - 16Mbps XAVC S - 3840 x 2160 p - 25 fps - 100Mbps XAVC S - 3840 x 2160 p - 25 fps - 60Mbps XAVC S - 1920 x 1080 p - 100 fps - 100Mbps XAVC S - 1920 x 1080 p - 100 fps - 60Mbps XAVC S - 1920 x 1080 p - 50 fps - 50Mbps XAVC S - 1920 x 1080 p - 25 fps - 50Mbps XAVC S - 1920 x 1080 p - 50 fps - 25Mbps XAVC S - 1920 x 1080 p - 25 fps - 16Mbps |
| BATTERY AND CHARGING | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Battery Type | Olympus BLN-1 Lithium Ion | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | Olympus BLN-1 Li-ion rechargeable battery (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 250 shots | Photo shooting - 650 shots (LCD Monitor on) Photo shooting - 530 shots (EVF on) Video recording - 1.92 hours (LCD Monitor on) Video recording - 1.67 hours (EVF on) |
| CONNECTIONS | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Interface | Composite video/audio, HDMI, USB 2.0, Wireless LAN | HDMI, USB 2.0, USB-C, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | Remote live view |
| Print Standard | DPOF support, Exif Print support, PRINT Image Matching | DPOF support, Exif Print support, PRINT Image Matching |
| Flash Terminal | Hot shoe | Hot shoe, PC terminal |
| Connector Type | USB 2.0 Composite video/audio output HDMI output (19 pin micro HDMI Type D) Microphone Accessory port |
USB 2.0 (5 pin Micro-USB Type B) USB 3.1 (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) |
| FEATURES | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 10 frames per second, 6.5 frames per second | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second |
| HDR Mode | - | HDR Movie mode |
| Additional Features | Audio recording, built-in speaker, RGB primary colour filter, auto power save, sharpness control, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera red-eye fix, interval shooting mode, face detection, Shadow Adjustment Technology, in-camera RAW processing, Full-time Live View, Intelligent AUTO (iAUTO), Eye-Fi Card Ready, Touch Shutter technology, GPS via mobile | Built-in speaker, sharpness control, camera orientation detection, histogram display, saturation control, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, Dolby Digital Stereo Creator, x.v.Colour technology, HDR image enhancement technology, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, silent shooting, GPS via mobile, S-Log2 gamma setting, Pixel Shift Resolution technology, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting |
| OTHERS | Olympus OM-D E-M1 | Sony Alpha7R III ILCE-7RM3 |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable | Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, cable protector, USB-C cable |
|---|---|---|
| Software | Drivers & Utilities, Olympus Viewer 3 | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
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