Pentax 645Z vs. Canon EOS 850D

Camera Comparison, Reviews and Tests

Side by side comparison and review of Pentax 645Z and Canon EOS 850D. 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

Pentax 645Z vs. Canon EOS 850D Comparison Chart
DESIGN AND DIMENSIONS Pentax 645Z Canon EOS 850D
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 11.7 cm 10.26 cm
Width 15.6 cm 13.1 cm
Depth 12.3 cm 7.62 cm
Weight 1.47 kg 471 g
Weight Details Camera body only: 1.47 kg
Camera with battery and memory card: 1.55 kg
Camera body only: 471 g
Camera with battery and memory card: 515 g
Body Material - Aluminium alloy, fibreglass-reinforced polycarbonate resin
Enclosure Colour - Black
Protection Dust-resistant, water-resistant -
SENSOR Pentax 645Z Canon EOS 850D
Sensor Resolution 51.4 Megapixel 24.1 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 52,990,000 pixels 25,800,000 pixels
Effective Sensor Resolution 51,400,000 pixels 24,100,000 pixels
Optical Sensor Size - APS-C (22.3 x 14.9 mm)
Frame Rate (Max Resolution) 30 fps 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Dust Reduction (image sensor vibration) EOS Integrated Cleaning System, Self Cleaning Sensor Unit
Image Stabiliser - Electronic (5-axis)
Sensors - Digital level metre
PROCESSOR Pentax 645Z Canon EOS 850D
Image Processor - DIGIC 8
LENS Pentax 645Z Canon EOS 850D
Lens Mounting Type Pentax 645AF Canon EF/EF-S
FOCUSING Pentax 645Z Canon EOS 850D
Auto Focus TTL contrast and phase detection Dual Pixel CMOS AF / TTL phase detection / TTL contrast detection
Auto Focus Points (Zones) Qty 27 45
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
Face Detection - Yes
VIEWFINDER Pentax 645Z Canon EOS 850D
Viewfinder Type Optical - trapezoid prism Optical - fixed eye-level pentamirror
Optical Viewfinder Field Coverage 98% 95%
Optical Viewfinder Magnification 0.62x 0.82x
Optical Viewfinder Dioptric Correction Range -3.5 to +2 -3 to +1
Viewfinder Information - Grid, electronic level, flicker detection, aspect ratio line, spot metering circle
Field of View Crop Factor 1.3 1.6
EXPOSURE & WHITE BALANCE Pentax 645Z Canon EOS 850D
ISO (Max) 204800 25600
Native ISO 100-204800 100-25600
Extended ISO (Max) - 51200
Light Sensitivity ISO auto (100-204800), ISO 100-248000 ISO 51200, ISO 100-25600, ISO auto (100-25600)
Exposure Metering Multi-segment, centre-weighted, spot Evaluative, partial (6.5%), centre-weighted, spot (2%)
Exposure Metering Zones - 216
Exposure Modes Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority
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 Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film 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 Tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), fluorescent light (daylight colour), fluorescent light (daylight white) Cloudy, tungsten light, Flash, daylight, 2000K - 10000K, fluorescent light (white)
Shutter Type Electronic Mechanical electronically-controlled
Max Shutter Speed 1/4000 sec 1/4000 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 1/125sec 1/200sec
Exposure Range EV -1-21 (ISO 200) EV 1-20 (ISO 100)
DISPLAY Pentax 645Z Canon EOS 850D
Type 3.2" LCD display 3" LCD display
Touch Screen - Yes
Display Format 1,037,000 pixels 1,040,000 pixels
Display Form Factor Folding Rotating
Display Features Display brightness control, display colour control Display brightness control
FLASH Pentax 645Z Canon EOS 850D
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 Pentax 645Z Canon EOS 850D
Digital Video Format MJPEG, H.264 H.264
Image Recording Format JPEG, RAW, RAW + JPEG JPEG, RAW + JPEG, C-RAW
Max Video Resolution 1920 x 1080 3840 x 2160
Audio Signal Format - AAC
MEMORY Pentax 645Z Canon EOS 850D
Memory Card Slot Dual SD card 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
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
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
BATTERY AND CHARGING Pentax 645Z Canon EOS 850D
Battery Type Pentax D-Li90 Lithium Ion Canon LP-E17 Lithium Ion
Details Pentax D-Li90 Li-ion rechargeable battery (included) Canon LP-E17 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 650 shots
Playback - 6.67 hours
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))
CONNECTIONS Pentax 645Z Canon EOS 850D
Interface HDMI, USB 3.0 HDMI, USB 2.0, IEEE 802.11b/g/n, Bluetooth 4.1
Connectivity Features - Remote control via mobile devices, Wireless Image Transfer
Print Standard - Direct print, DPOF support, Exif Print support, PictBridge support
Tripod Mount Connection Point - 1/4" socket
Flash Terminal Hot shoe Hot shoe
Connector Type USB 3.0 (24 pin Micro-USB-C)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
DC power input
USB / AV output
Microphone (mini-phone stereo 3.5 mm)
HDMI output (19 pin mini HDMI Type C)
FEATURES Pentax 645Z Canon EOS 850D
Self-Timer Delay 2sec, 12sec 10 sec, 2sec
Continuous Shooting Speed 3 frames per second, 4.5 frames per second 7.5 frames per second, 7 frames per second
Additional Features RGB primary colour filter, interval shooting mode, peripheral illumination correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Lateral Chromatic Aberration Correction, distortion correction function, anti-aliasing filter simulator, diffraction correction 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
OTHERS Pentax 645Z Canon EOS 850D
Included Accessories Carrying strap, battery charger, body cap, eyecup, shoe cap Battery charger, body cap, neck strap
Software Drivers & Utilities -
Max Operating Temperature - 40 °C
Min Operating Temperature - 0 °C
Service & Support - Limited warranty - 2 years
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