Side by side comparison and review of Canon EOS 850D and Canon EOS 1D X Mark III. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Product Type | Digital camera - 4K - SLR with Live View mode, movie recording | Digital camera - 5.5K - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 10.26 cm | 16.76 cm |
| Width | 13.1 cm | 15.8 cm |
| Depth | 7.62 cm | 8.26 cm |
| Weight | 471 g | 1.25 kg |
| Weight Details | Camera body only: 471 g Camera with battery and memory card: 515 g |
Camera body only: 1.25 kg Camera with battery and memory card: 1.44 kg |
| Body Material | Aluminium alloy, fibreglass-reinforced polycarbonate resin | Magnesium alloy |
| Enclosure Colour | Black | - |
| Protection | - | Weatherproof, dust-resistant |
| Navigation | - | GPS receiver |
| SENSOR | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Sensor Resolution | 24.1 Megapixel | 20.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 25,800,000 pixels | 21,400,000 pixels |
| Effective Sensor Resolution | 24,100,000 pixels | 20,100,000 pixels |
| Optical Sensor Size | APS-C (22.3 x 14.9 mm) | Full Frame (36 x 24 mm) |
| Frame Rate (Max Resolution) | 30 fps | 60 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | EOS Integrated Cleaning System, Self Cleaning Sensor Unit | Self Cleaning Sensor Unit, High Detail Low Pass Filter |
| Image Stabiliser | Electronic (5-axis) | - |
| Sensors | Digital level metre | - |
| PROCESSOR | Canon EOS 850D | Canon EOS 1D X Mark III |
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| Image Processor | DIGIC 8 | DIGIC X |
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| LENS | Canon EOS 850D | Canon EOS 1D X Mark III |
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| Lens Mounting Type | Canon EF/EF-S | Canon EF |
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| FOCUSING | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Auto Focus | Dual Pixel CMOS AF / TTL phase detection / TTL contrast detection | Dual Pixel CMOS AF |
|---|---|---|
| Auto Focus Points (Zones) Qty | 45 | 191 |
| Auto Focus Features | Focus Peaking function, Manual Focus Assist | Deep Learning technology |
| AE/AF Control | Eye detection AF, Zone AF, AI Focus AF, AI Servo AF, Large Zone AF | Face-priority AF, Eye detection AF, Zone AF, AI Servo AF, Head Detection AF, Large Zone AF |
| Face Detection | Yes | - |
| VIEWFINDER | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Viewfinder Type | Optical - fixed eye-level pentamirror | Optical - fixed eye-level pentaprism |
|---|---|---|
| Optical Viewfinder Field Coverage | 95% | 100% |
| Optical Viewfinder Magnification | 0.82x | 0.76x |
| Optical Viewfinder Dioptric Correction Range | -3 to +1 | -3 to +1 |
| Viewfinder Information | Grid, electronic level, flicker detection, aspect ratio line, spot metering circle | - |
| Field of View Crop Factor | 1.6 | 1.0 |
| EXPOSURE & WHITE BALANCE | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| ISO (Max) | 25600 | 819200 |
|---|---|---|
| Native ISO | 100-25600 | 100-102400 |
| Extended ISO (Max) | 51200 | 204800 (H1), 409600 (H2), 819200 (H3) |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO 51200, ISO 100-25600, ISO auto (100-25600) | ISO 50, ISO auto, ISO 100-102400, ISO 819200 |
| Exposure Metering | Evaluative, partial (6.5%), centre-weighted, spot (2%) | Evaluative, centre-weighted, spot (1.5%), partial (6.2%) |
| Exposure Metering Zones | 216 | 216 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, manual, aperture-priority, shutter-priority, E-TTL II program flash |
| Bracketing Modes | Flash Exposure Bracketing, white balance 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) | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (white) |
| 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 steps in 1/2 or 1/3 EV steps |
| X-sync Speed | 1/200sec | 1/250sec |
| Exposure Range | EV 1-20 (ISO 100) | EV 0-20 (ISO 100) |
| DISPLAY | Canon EOS 850D | Canon EOS 1D X Mark III |
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| Type | 3" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,040,000 pixels | 2,100,000 pixels |
| Display Form Factor | Rotating | Built-in |
| Display Features | Display brightness control | Display brightness control |
| FLASH | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| 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 | Canon EOS 1D X Mark III |
|---|
| Digital Video Format | H.264 | H.264, RAW, H.265 |
|---|---|---|
| Image Recording Format | JPEG, RAW + JPEG, C-RAW | JPEG, RAW, RAW + JPEG, C-RAW, HEIF |
| Max Video Resolution | 3840 x 2160 | 5472 x 2886 |
| Audio Signal Format | AAC | - |
| Microphone Operation Mode | - | Mono |
| MEMORY | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Memory Card Slot | 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 | CFexpress |
| Memory Card | - | 64 GB CFexpress |
| Memory Card Included | No | Yes |
| 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 |
5472 x 3648 4368 x 2912 3648 x 2432 2736 x 1824 |
| 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 |
RAW - 5472 x 2286 4096 x 2160 3840 x 2160 1920 x 1080 |
| BATTERY AND CHARGING | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Battery Type | Canon LP-E17 Lithium Ion | Canon LP-E19 Lithium Ion |
|---|---|---|
| Details | Canon LP-E17 Li-ion rechargeable battery (included) | Canon LP-E19 Li-ion rechargeable battery (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 - 2850 shots (at 23 °C (LCD Monitor off)) Photo shooting - 2360 shots (at 0 °C (LCD Monitor off)) Photo shooting - 610 shots (at 23 °C (Live View mode)) Photo shooting - 530 shots (at 0 °C (Live View mode)) |
| CONNECTIONS | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Interface | HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth 4.1 | USB 3.1, Wireless LAN, Bluetooth |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, Wireless Image Transfer | - |
| Print Standard | Direct print, DPOF support, Exif Print support, PictBridge support | DPOF support, Exif Print support |
| Tripod Mount Connection Point | 1/4" socket | - |
| Flash Terminal | Hot shoe | Hot shoe, PC terminal |
| Connector Type | USB / AV output Microphone (mini-phone stereo 3.5 mm) HDMI output (19 pin mini HDMI Type C) |
USB 3.1 Gen 2 (USB Type-C) Microphone (mini-phone stereo 3.5 mm) |
| FEATURES | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Self-Timer Delay | 10 sec, 2sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 7.5 frames per second, 7 frames per second | 8 frames per second, 3 frames per second, 20 frames per second, 10 frames per second, 16 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 | Audio recording, RGB primary colour filter, auto power save, depth-of-field preview button, histogram display, AE lock, AF lock, FE lock, highlight point display, Dust Delete Data system, in-camera RAW processing |
| OTHERS | Canon EOS 850D | Canon EOS 1D X Mark III |
|---|
| Included Accessories | Battery charger, body cap, neck strap | Body cap, neck strap, eyecup, interface cable, cable protector, dual battery charger |
|---|---|---|
| Max Operating Temperature | 40 °C | 45 °C |
| Min Operating Temperature | 0 °C | 0 °C |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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