Canon EOS 5DS R vs. Pentax K-3 Mark III

Camera Comparison, Reviews and Tests

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.

Camera Specifications Comparison

Canon EOS 5DS R vs. Pentax K-3 Mark III Comparison Chart
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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