In depth comparison and review of Canon EOS 850D 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 850D | Sony Alpha7s III ILCE-7SM3 |
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| Product Type | Digital camera - 4K - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10.26 cm | 9.69 cm |
| Width | 13.1 cm | 12.89 cm |
| Depth | 7.62 cm | 8.08 cm |
| Weight | 471 g | 699 g |
| Weight Details | Camera body only: 471 g Camera with battery and memory card: 515 g |
Camera with battery and memory card: 699 g |
| Body Material | Aluminium alloy, fibreglass-reinforced polycarbonate resin | Magnesium alloy |
| Enclosure Colour | Black | - |
| Protection | - | Dust-resistant, moisture-resistant |
| Digital Zoom | - | 4x |
| SENSOR | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Sensor Resolution | 24.1 Megapixel | 12.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | Exmor R CMOS |
| Total Pixels | 25,800,000 pixels | 12,900,000 pixels |
| Effective Sensor Resolution | 24,100,000 pixels | 12,100,000 pixels |
| Optical Sensor Size | APS-C (22.3 x 14.9 mm) | Full Frame (35.6 x 23.8 mm) |
| Frame Rate (Max Resolution) | 30 fps | 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 | Electronic (5-axis) | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
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| Image Processor | DIGIC 8 | BIONZ XR |
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| LENS | Canon EOS 850D | 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 850D | Sony Alpha7s III ILCE-7SM3 |
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| Auto Focus | Dual Pixel CMOS AF / TTL phase detection / TTL contrast detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 45 | 759 |
| Auto Focus Features | Focus Peaking function, Manual Focus Assist | Focus Peaking function, Predictive Focus Control |
| AE/AF Control | Eye detection AF, Zone AF, AI Focus AF, AI Servo AF, Large Zone AF | Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF |
| Face Detection | Yes | Face Recognition, face-priority AF function |
| VIEWFINDER | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Viewfinder Type | Optical - fixed eye-level pentamirror | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.64" |
| Viewfinder Resolution | - | 9,437,184 pixels |
| Optical Viewfinder Field Coverage | 95% | 100% |
| Optical Viewfinder Magnification | 0.82x | 0.9x |
| Optical Viewfinder Dioptric Correction Range | -3 to +1 | -4 to +3 |
| Viewfinder Information | Grid, electronic level, flicker detection, aspect ratio line, spot metering circle | - |
| Field of View Crop Factor | 1.6 | - |
| EXPOSURE & WHITE BALANCE | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| ISO (Max) | 25600 | 409600 |
|---|---|---|
| Native ISO | 100-25600 | - |
| Extended ISO (Max) | 51200 | 409600 |
| Extended ISO (Min) | - | 40 |
| Light Sensitivity | ISO 51200, ISO 100-25600, ISO auto (100-25600) | ISO 204800, ISO 409600, ISO 80-102400, ISO 40 |
| Exposure Metering | Evaluative, partial (6.5%), centre-weighted, spot (2%) | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 216 | 1200 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | Flash Exposure Bracketing, white balance bracketing | Dynamic Range Bracketing |
| Shooting Programs | Landscape, portrait mode, close-up, night portrait, food, sports mode, candle, kids, backlight correction HDR, smooth skin, handheld night scene, group photo | - |
| Special Effects | Neutral, fisheye, soft focus, Faithful, monochrome, landscape, portrait, miniature, Toy camera, HDR Art, Grainy B&W, Water painting, Fine Detail | - |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Cloudy, tungsten light, Flash, daylight, 2000K - 10000K, fluorescent light (white) | Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K |
| Shutter Type | Mechanical electronically-controlled | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 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 | 3 steps in 1/2 or 1/3 EV steps | 3, 5 or 9 steps |
| X-sync Speed | 1/200sec | 1/250sec |
| Exposure Range | EV 1-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
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| 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 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Camera Flash | Pop-up flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 12 | - |
| Flash Modes | Fill-in mode, auto mode | - |
| Red-Eye Reduction | Yes | - |
| Features | AF illuminator, wireless off-camera control | - |
| VIDEOGRAPHY / CAMCORDER | Canon EOS 850D | Sony Alpha7s III ILCE-7SM3 |
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| Digital Video Format | H.264 | H.264, XAVC S, H.265, XAVC HS |
|---|---|---|
| Image Recording Format | JPEG, RAW + JPEG, C-RAW | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 3840 x 2160 | 3840 x 2160 |
| Audio Signal Format | AAC | AAC |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Canon EOS 850D | 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 | RAW 6000 x 4000 JPEG 6000 x 4000 JPEG 3984 x 2656 JPEG 2976 x 1984 JPEG 2400 x 1600 JPEG 5328 x 4000 JPEG 3552 x 2664 JPEG 2656 x 1992 JPEG 2112 x 1600 JPEG 6000 x 3368 JPEG 3984 x 2240 JPEG 2976 x 1680 JPEG 2400 x 1344 JPEG 4000 x 4000 JPEG 2656 x 2656 JPEG 1984 x 1984 JPEG 1600 x 1600 |
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 - 3840 x 2160 p - 29.97 fps H.264 - 3840 x 2160 p - 25 fps H.264 - 3840 x 2160 p - 24 fps H.264 - 1920 x 1080 p - 59.94 fps H.264 - 1920 x 1080 p - 50 fps H.264 - 1920 x 1080 p - 29.97 fps H.264 - 1920 x 1080 p - 23.98 fps H.264 - 1280 x 720 p - 59.94 fps H.264 - 1280 x 720 p - 50 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 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Battery Type | Canon LP-E17 Lithium Ion | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| Details | Canon LP-E17 Li-ion rechargeable battery (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 800 shots (at 23 °C (LCD Monitor off)) Photo shooting - 730 shots (at 0 °C (LCD Monitor off)) Photo shooting - 310 shots (at 23 °C (Live View mode)) Photo shooting - 290 shots (at 0 °C (Live View mode)) |
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 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Interface | HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth 4.1 | HDMI, USB-C, Wireless LAN, NFC (Near Field Communication), Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, Wireless Image Transfer | 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 |
| Tripod Mount Connection Point | 1/4" socket | - |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB / AV output Microphone (mini-phone stereo 3.5 mm) HDMI output (19 pin mini HDMI Type C) |
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 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 7.5 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, histogram display, AE lock, AF lock, FE lock, cropping an image, resizing an image, highlight point display, Dust Delete Data system, Auto Lighting Optimizer, peripheral illumination correction, Multi-Frame Noise Reduction, HDR image enhancement technology, Time-Lapse recording, noise reduction over long exposures, high ISO speed noise reduction, GPS via mobile, distortion correction function, diffraction correction, chromatic aberration correction | 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 850D | Sony Alpha7s III ILCE-7SM3 |
|---|
| Included Accessories | Battery charger, body cap, neck strap | - |
|---|---|---|
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Service & Support | Limited warranty - 2 years | - |
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