Side by side comparison and review of Canon EOS 5DS R and Pentax K-3 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 5DS R | Pentax K-3 Mark III |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.64 cm | 10.35 cm |
| Width | 15.2 cm | 13.45 cm |
| Depth | 7.64 cm | 7.35 cm |
| Weight | 845 g | 735 g |
| Weight Details | Camera body only: 845 g Camera with battery and memory card: 930 g |
Camera body only: 735 g Camera with battery and memory card: 820 g |
| Body Material | Magnesium alloy | Magnesium alloy |
| Enclosure Colour | - | Black | Silver |
| Protection | Weatherproof, dust-resistant | Weatherproof, dust-resistant |
| Navigation | - | GPS receiver |
| SENSOR | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Sensor Resolution | 50.6 Megapixel | 25.73 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 53,000,000 pixels | 26,780,000 pixels |
| Effective Sensor Resolution | 50,642,856 pixels | 25,730,000 pixels |
| Optical Sensor Size | Full Frame (36 x 24 mm) | APS-C (23.3 x 15.5 mm) |
| Frame Rate (Max Resolution) | 30 fps | 30 fps |
| Sensor Dust Reduction | Yes | - |
| Sensor Features | EOS Integrated Cleaning System, Self Cleaning Sensor Unit | Dust Reduction (image sensor vibration), anti-aliasing simulator function |
| Image Stabiliser | - | Optical SR II (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Image Processor | Dual DIGIC 6 | - |
|---|
| LENS | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Lens Mounting Type | Canon EF | Pentax K |
|---|
| FOCUSING | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 61 | 101 |
| Auto Focus Features | Predictive Focus Control, Intelligent Tracking and Recognition (iTR AF) system | - |
| AE/AF Control | Auto-area AF, Predictive AI Servo AF, Zone AF, AI Focus AF | Auto-area AF, Zone AF, Expanded area AF |
| Face Detection | - | Yes |
| VIEWFINDER | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Viewfinder Type | Optical - fixed eye-level pentaprism | Optical - fixed eye-level pentaprism |
|---|---|---|
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.71x | 1.05x |
| Optical Viewfinder Dioptric Correction Range | -3 to +1 | -4 to +1 |
| Viewfinder Information | Shutter speed, exposure compensation, 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 status, AF point, grid, electronic level, maximum burst, flicker detection, JPEG/RAW | - |
| Field of View Crop Factor | 1.0 | - |
| Features | - | Auto eye sensor |
| EXPOSURE & WHITE BALANCE | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| ISO (Max) | 102400 | 1600000 |
|---|---|---|
| Native ISO | 200-25600 | - |
| Extended ISO (Max) | 51200 (H1), 102400 (H2) | - |
| Extended ISO (Min) | 50 | - |
| Light Sensitivity | ISO 50, ISO 102400, ISO 51200, ISO 12800, ISO 100-6400, ISO auto (100-6400) | ISO auto, ISO 100-1600000 |
| Exposure Metering | Evaluative, centre-weighted, partial (6.1%), spot (1.3%) | Multi-segment, centre-weighted, spot, highlight-weighted |
| Exposure Metering Zones | 252 | - |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, E-TTL II program flash | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority |
| Bracketing Modes | Flash Exposure Bracketing | Depth of field bracketing, motion bracketing |
| Special Effects | Neutral, Faithful, monochrome, landscape, portrait | Soft, Slim, fisheye, natural, bright, Vibrant, monochrome, Muted, Flat, landscape, portrait, miniature, Cross Process, Retro, Colour Extract, Toy camera, High contrast, Colour Invert, Bleach Bypass, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold, Colour replace, Grainy Monochrome |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Cloudy, tungsten light, Flash, daylight, shade, sunset, fluorescent light (white), twilight | Cloudy, tungsten light, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white) |
| Shutter Type | Mechanical electronically-controlled | Electronic, 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 | 3 steps in 1/2 or 1/3 EV steps | - |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/200sec | 1/200sec |
| Exposure Range | EV 0-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Type | 3.2" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,040,000 pixels | 1,620,000 pixels |
| Display Form Factor | Built-in | Built-in |
| Display Features | Display brightness control, automatic display brightness adjustment | Colour control, contrast control, display brightness control, night vision LCD display |
| VIDEOGRAPHY / CAMCORDER | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Digital Video Format | H.264, MOV | H.264, MOV |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, DNG (RAW), PEF (RAW) |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Microphone Operation Mode | - | Stereo |
| Microphone Features | - | Wind noise reduction, sensitivity control |
| MEMORY | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Memory Card Slot | CompactFlash Card, SD card | Dual SD card |
|---|---|---|
| Supported Memory Cards | CompactFlash, 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 |
| Memory Card Included | No | No |
| Image Storage | JPEG 8688 x 5792 JPEG 7680 x 5120 JPEG 5760 x 3840 JPEG 4320 x 2880 JPEG 1920 x 1280 JPEG 720 x 480 RAW 8688 x 5792 RAW 6480 x 4320 RAW 4320 x 2880 |
RAW 6192 x 4128 JPEG 6192 x 4128 JPEG 4752 x 3168 JPEG 3648 x 2432 JPEG 1920 x 1280 |
| 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 |
H.264 - 3840 x 2160 p - 30 fps H.264 - 3840 x 2160 p - 24 fps H.264 - 1920 x 1080 p - 60 fps H.264 - 1920 x 1080 p - 30 fps H.264 - 1920 x 1080 p - 24 fps |
| BATTERY AND CHARGING | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Battery Type | Canon LP-E6 Lithium Ion | Pentax D-Li90 Lithium Ion |
|---|---|---|
| Details | Canon LP-E6 Li-ion rechargeable battery - 1800 mAh (included) | Pentax D-Li90 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 700 shots (at 23 °C (LCD Monitor off)) Photo shooting - 660 shots (at 0 °C (LCD Monitor off)) Photo shooting - 220 shots (at 23 °C (Live View mode)) Photo shooting - 210 shots (at 0 °C (Live View mode)) |
Photo shooting - 800 shots Playback - 250 minutes |
| CONNECTIONS | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Interface | Composite video/audio, HDMI, USB 3.0 | HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | Wi-Fi ready | Remote control via mobile devices, remote live view, Wireless Image Transfer |
| Print Standard | Direct print, DPOF support, Exif Print support, PictBridge support | Exif Print support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe, PC terminal | Hot shoe, PC terminal |
| Connector Type | USB 3.0 HDMI output (19 pin mini HDMI Type C) Composite video/audio output System accessory terminal |
USB 3.2 Gen 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) Remote control (sub-mini phone 2.5 mm) |
| FEATURES | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Self-Timer Delay | 10 sec, 2sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 5 frames per second | 2.5 frames per second, 12 frames per second, 7 frames per second |
| HDR Mode | - | Auto HDR mode |
| Additional Features | RGB primary colour filter, auto power save, depth-of-field preview button, camera orientation detection, histogram display, AE lock, AF lock, FE lock, cropping an image, resizing an image, GPS ready, interval shooting mode, highlight point display, Dust Delete Data system, Auto Lighting Optimizer, in-camera RAW processing, Time-Lapse recording, silent shooting, High Dynamic Range (HDR), no Optical Low Pass Filter (OLFP), Intelligent Scene Analysis (iSA) system, Mirror Vibration Control system | Audio recording, date/time stamp, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, interval shooting mode, in-camera film editing, in-camera RAW processing, peripheral illumination correction, horizon correction, NR Slow Shutter, High ISO NR, Lens Distortion Correction, primary colour filter, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, diffraction correction, Pixel Shift Resolution technology, colour fringe correction, multiple exposure capture, GPS stamp, D-range correction |
| OTHERS | Canon EOS 5DS R | Pentax K-3 Mark III |
|---|
| Included Accessories | Battery charger, body cap, neck strap, USB cable, eyecup, cable protector | Eyepiece cover, carrying strap, battery charger, body cap, USB cable, eyecup, shoe cap, sync terminal cover |
|---|---|---|
| Software | Drivers & Utilities | Digital Camera Utility 5 |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | -10 °C |
| Service & Support | - | Limited warranty - 1 year |
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