Canon EOS 850D vs. Pentax K-3 Mark III

Camera Comparison, Reviews and Tests

Side by side comparison and review of Canon EOS 850D 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 850D vs. Pentax K-3 Mark III Comparison Chart
DESIGN AND DIMENSIONS Canon EOS 850D Pentax K-3 Mark III
Product Type Digital camera - 4K - SLR with Live View mode, movie recording Digital camera - 4K - SLR with Live View mode, movie recording
Lens Included Body only Body only
Height 10.26 cm 10.35 cm
Width 13.1 cm 13.45 cm
Depth 7.62 cm 7.35 cm
Weight 471 g 735 g
Weight Details Camera body only: 471 g
Camera with battery and memory card: 515 g
Camera body only: 735 g
Camera with battery and memory card: 820 g
Body Material Aluminium alloy, fibreglass-reinforced polycarbonate resin Magnesium alloy
Enclosure Colour Black Black | Silver
Protection - Weatherproof, dust-resistant
Navigation - GPS receiver
SENSOR Canon EOS 850D Pentax K-3 Mark III
Sensor Resolution 24.1 Megapixel 25.73 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 25,800,000 pixels 26,780,000 pixels
Effective Sensor Resolution 24,100,000 pixels 25,730,000 pixels
Optical Sensor Size APS-C (22.3 x 14.9 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 Electronic (5-axis) 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 850D Pentax K-3 Mark III
Image Processor DIGIC 8 -
LENS Canon EOS 850D Pentax K-3 Mark III
Lens Mounting Type Canon EF/EF-S Pentax K
FOCUSING Canon EOS 850D Pentax K-3 Mark III
Auto Focus Dual Pixel CMOS AF / TTL phase detection / TTL contrast detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 45 101
Auto Focus Features Focus Peaking function, Manual Focus Assist -
AE/AF Control Eye detection AF, Zone AF, AI Focus AF, AI Servo AF, Large Zone AF Auto-area AF, Zone AF, Expanded area AF
Face Detection Yes Yes
VIEWFINDER Canon EOS 850D Pentax K-3 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 1.05x
Optical Viewfinder Dioptric Correction Range -3 to +1 -4 to +1
Viewfinder Information Grid, electronic level, flicker detection, aspect ratio line, spot metering circle -
Field of View Crop Factor 1.6 -
Features - Auto eye sensor
EXPOSURE & WHITE BALANCE Canon EOS 850D Pentax K-3 Mark III
ISO (Max) 25600 1600000
Native ISO 100-25600 -
Extended ISO (Max) 51200 -
Light Sensitivity ISO 51200, ISO 100-25600, ISO auto (100-25600) ISO auto, ISO 100-1600000
Exposure Metering Evaluative, partial (6.5%), centre-weighted, spot (2%) Multi-segment, centre-weighted, spot, highlight-weighted
Exposure Metering Zones 216 -
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority
Bracketing Modes Flash Exposure Bracketing, white balance bracketing Depth of field bracketing, motion 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 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, 2000K - 10000K, fluorescent light (white) 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 1/4000 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 -
X-sync Speed 1/200sec 1/200sec
Exposure Range EV 1-20 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Canon EOS 850D Pentax K-3 Mark III
Type 3" LCD display 3.2" LCD display
Touch Screen Yes Yes
Display Format 1,040,000 pixels 1,620,000 pixels
Display Form Factor Rotating Built-in
Display Features Display brightness control Colour control, contrast control, display brightness control, night vision LCD display
FLASH Canon EOS 850D Pentax K-3 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 Pentax K-3 Mark III
Digital Video Format H.264 H.264, MOV
Image Recording Format JPEG, RAW + JPEG, C-RAW JPEG, DNG (RAW), PEF (RAW)
Max Video Resolution 3840 x 2160 3840 x 2160
Audio Signal Format AAC -
Microphone Operation Mode - Stereo
Microphone Features - Wind noise reduction, sensitivity control
MEMORY Canon EOS 850D Pentax K-3 Mark III
Memory Card Slot SD card Dual SD card
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
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
RAW 6192 x 4128
JPEG 6192 x 4128
JPEG 4752 x 3168
JPEG 3648 x 2432
JPEG 1920 x 1280
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
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 850D Pentax K-3 Mark III
Battery Type Canon LP-E17 Lithium Ion Pentax D-Li90 Lithium Ion
Details Canon LP-E17 Li-ion rechargeable battery (included) Pentax D-Li90 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 - 800 shots
Playback - 250 minutes
CONNECTIONS Canon EOS 850D Pentax K-3 Mark III
Interface HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth 4.1 HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2
Connectivity Features Remote control via mobile devices, Wireless Image Transfer 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
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 3.2 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 850D Pentax K-3 Mark III
Self-Timer Delay 10 sec, 2sec 2sec, 12sec
Continuous Shooting Speed 7.5 frames per second, 7 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, 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, 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 850D Pentax K-3 Mark III
Included Accessories Battery charger, body cap, neck strap Eyepiece cover, carrying strap, battery charger, body cap, USB cable, eyecup, shoe cap, sync terminal cover
Software - Digital Camera Utility 5
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C -10 °C
Service & Support Limited warranty - 2 years Limited warranty - 1 year
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