In depth comparison and review of Canon EOS 70D 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 | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10.43 cm | 9.69 cm |
| Width | 13.9 cm | 12.89 cm |
| Depth | 7.85 cm | 8.08 cm |
| Weight | 675 g | 699 g |
| Weight Details | - | Camera with battery and memory card: 699 g |
| Body Material | Aluminium, fibreglass-reinforced polycarbonate resin | Magnesium alloy |
| Protection | - | Dust-resistant, moisture-resistant |
| Digital Zoom | - | 4x |
| SENSOR | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
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| Sensor Resolution | 20.2 Megapixel | 12.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | Exmor R CMOS |
| Total Pixels | 20,900,000 pixels | 12,900,000 pixels |
| Effective Sensor Resolution | 20,200,000 pixels | 12,100,000 pixels |
| Optical Sensor Size | APS-C (22.5 x 15.0 mm) | Full Frame (35.6 x 23.8 mm) |
| Frame Rate (Max Resolution) | - | 120 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | EOS Integrated Cleaning System, Self Cleaning Sensor Unit | Dust Reduction (image sensor vibration), Anti-Dust coating |
| Image Stabiliser | - | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
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| Image Processor | DIGIC 5+ | BIONZ XR |
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| LENS | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
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| Lens Mounting Type | Canon EF/EF-S | Sony E-mount |
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| FOCUSING | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
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| Auto Focus | TTL phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 19 | 759 |
| Auto Focus Features | - | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | FlexiZone, Subject-tracking AF, Touch Area AF, Predictive AI Servo AF, Movie Servo AF | Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF |
| Face Detection | Automatic Face Tracking technology | Face Recognition, face-priority AF function |
| VIEWFINDER | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.64" |
| Viewfinder Resolution | - | 9,437,184 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.95x | 0.9x |
| Optical Viewfinder Dioptric Correction Range | -3 to +1 | -4 to +3 |
| Viewfinder Information | Shutter speed, AE lock, AF-in-focus, flash charge completion, red-eye reduction, aperture, high-speed sync indicator, flash compensation on/off, highlight tone priority, ISO sensitivity, memory card status, FE lock, AF point, grid, electronic level, maximum burst | - |
| Field of View Crop Factor | 1.6 | - |
| EXPOSURE & WHITE BALANCE | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| ISO (Max) | 25600 | 409600 |
|---|---|---|
| Extended ISO (Max) | - | 409600 |
| Extended ISO (Min) | - | 40 |
| Light Sensitivity | ISO auto (100-12800), ISO 25600, ISO 100-12800 | ISO 204800, ISO 409600, ISO 80-102400, ISO 40 |
| Exposure Metering | Evaluative, centre-weighted, partial (7.7%), spot (3%) | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 63 | 1200 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Dynamic Range Bracketing |
| Shooting Programs | Landscape, portrait mode, close-up, night portrait, multiple exposure, sports mode, handheld night shot, backlight correction HDR | - |
| Special Effects | Fisheye, soft focus, miniature, Toy camera, Art Bold, Grainy B&W, Water painting | - |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Cloudy, tungsten light, Flash, daylight, shade, 2000K - 10000K, fluorescent light (white), twilight | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K |
| Shutter Type | - | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/8000 sec |
| Min Shutter Speed | 30 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 7 steps in 1/2 or 1/3 EV steps | 3, 5 or 9 steps |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/250sec | 1/250sec |
| Exposure Range | EV 1-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,040,000 pixels | 1,440,000 pixels |
| Display Form Factor | Rotating | Folding |
| Display Features | Display brightness control | Display brightness control |
| FLASH | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 12 | - |
| Flash Modes | Fill-in mode, E-TTL, rear curtain sync, auto mode, flash OFF mode, red-eye reduction | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator, flash +/- compensation, wireless off-camera control, flash exposure bracketing | - |
| VIDEOGRAPHY / CAMCORDER | Canon EOS 70D | 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, CR2 (RAW) | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | AAC |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Sensitivity control | - |
| MEMORY | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Memory Card Slot | 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 | 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 | JPEG 5472 x 3648 JPEG 4864 x 3648 JPEG 5472 x 3072 JPEG 3648 x 2432 JPEG 3248 x 2432 JPEG 3648 x 2048 JPEG 2736 x 1824 JPEG 2432 x 1824 JPEG 2736 x 1536 JPEG 1920 x 1280 JPEG 1696 x 1280 JPEG 1920 x 1080 JPEG 720 x 480 JPEG 640 x 480 JPEG 720 x 408 RAW 5472 x 3648 RAW 4864 x 3648 RAW 5472 x 3072 RAW 4104 x 2736 RAW 3648 x 2736 RAW 4104 x 2310 RAW 2736 x 1824 RAW 2432 x 1824 RAW 2736 x 1536 JPEG 3648 x 3648 JPEG 2432 x 2432 JPEG 1824 x 1824 JPEG 1280 x 1280 JPEG 480 x 480 RAW 3648 x 3648 RAW 2736 x 2736 RAW 1824 x 1824 |
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 | H.264 - 1920 x 1080 - 30 fps H.264 - 1920 x 1080 - 25 fps H.264 - 1920 x 1080 - 24 fps H.264 - 1280 x 720 - 60 fps H.264 - 1280 x 720 - 50 fps H.264 - 640 x 480 - 30 fps H.264 - 640 x 480 - 25 fps |
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 | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Battery Type | Canon LP-E6 Lithium Ion | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | Canon LP-E6 Li-ion rechargeable battery (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 1300 shots (at 23 °C (LCD Monitor off)) Photo shooting - 1200 shots (at 0 °C (LCD Monitor off)) Photo shooting - 230 shots (at 23 °C (Live View mode)) Photo shooting - 210 shots (at 0 °C (Live View mode)) Photo shooting - 920 shots (at 23 °C (AE 50%, FE 50%)) Photo shooting - 850 shots (at 0 °C (AE 50%, FE 50%)) |
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 | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Interface | Composite video/audio, HDMI, USB 2.0, Wireless LAN | HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices | Remote control via mobile devices, Wireless Image Transfer, PC Remote functions via Wi-Fi |
| Print Standard | Direct print, DPOF support, Exif Print support, PictBridge support | Exif Print support, PRINT Image Matching |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | Composite video/audio output USB 2.0 HDMI output (19 pin mini HDMI Type C) Microphone (mini-phone stereo 3.5 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 | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 7 frames per second | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second |
| Additional Features | RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, GPS ready, LCD live view mode, highlight point display, face detection, Auto Lighting Optimizer, in-camera RAW processing, peripheral illumination correction, Chromatic Aberration Compensation (CAC), Multi-Frame Noise Reduction, Eye-Fi Card Ready, Scene Intelligent Auto technology, Wi-Fi Protected Setup (WPS), noise reduction over long exposures, high ISO speed noise reduction, silent shooting, Dual Pixel CMOS AF technology | 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 | Canon EOS 70D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Included Accessories | Battery charger, body cap, neck strap, USB cable, eyecup | - |
|---|---|---|
| Software | Drivers & Utilities, Canon PhotoStitch, Canon Digital Photo Professional, Canon Picture Style Editor, Canon ImageBrowser EX, Canon EOS Utility | - |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Service & Support | Limited warranty - 1 year | - |
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