• Medium format 1,436.6mm2
  • 51.4 megapixels
  • ISO 100 - 204,800
  • 35mm 864.0mm2
  • 30.3 megapixels
  • ISO 100 - 40,000
  • Detailed specifications
  • Pentax 645Z
  • Canon EOS R
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Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax 645D
645D vs 645Z 		 
Successor:    
General
Model Number: 645Z EOS R
Alternate Model Number(s):   R
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $8499.95 $3399.00
Street Price: $4,845.43 $1,595.66
Date Available: 2014-06-15 2018-10-15
Tripod Mount: Yes Yes
Weight: 54.9 oz (1,555 g)
includes batteries 		48.0 oz (1,360 g)
includes batteries, kit lens
Size: 6.1 x 4.6 x 4.8 in.
(156 x 117 x 123 mm) 		5.3 x 3.9 x 3.3 in.
(136 x 98 x 84 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Canon
Effective Megapixels: 51.4 30.3
Sensor Format: Medium format 35mm
Sensor size: 1436.64mm2 (43.80mm x 32.80mm) 864mm2 (36.00mm x 24.00mm)
Approximate Pixel Pitch: 5.31 microns 5.36 microns
Focal Length Multiplier: 0.8x 1.0x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 101 89
DxO Color Depth Score (bits): 26.0 24.5
DxO Dynamic Range Score (evs): 14.7 13.5
DxO Maximum Effective ISO Score (iso): 4,505 2,742
Image Capture
Image Resolution: 8256 x 6192 (51.1 MP, 4:3),
6192 x 5184 (32.1 MP, Other),
5376 x 4032 (21.7 MP, 4:3),
1920 x 1440 (2.8 MP, 4:3) 		6720 x 4480 (30.1 MP, 3:2),
4464 x 2976 (13.3 MP, 3:2),
3360 x 2240 (7.5 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
5952 x 4480 (26.7 MP, 4:3),
3968 x 2976 (11.8 MP, 4:3),
2976 x 2240 (6.7 MP, 4:3),
2112 x 1600 (3.4 MP, Other),
6720 x 3776 (25.4 MP, 16:9),
4464 x 2512 (11.2 MP, 16:9),
3360 x 1888 (6.3 MP, 16:9),
2400 x 1344 (3.2 MP, Other),
4480 x 4480 (20.1 MP, 1:1),
2976 x 2976 (8.9 MP, 1:1),
2240 x 2240 (5.0 MP, 1:1),
1600 x 1600 (2.6 MP, 1:1)
Image File Format: JPEG, 14-bit PEF / DNG RAW, TIFF JPEG (EXIF v2.3), RAW (14 bit), C-RAW; RAW+JPEG
Continuous-mode frames/second: 3.1 8.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p) 		3840x2160 (30p/​25p/​24/​23.98p)
1920x1080 (60p/​50p/​30p/​25p/​24p/​23.98p)
1280x720 (120p/​100p/​60p/​30p)
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MP4 (Video: MPEG4 AVC/H.264 Variable (averaged) bit rate; Audio:ALL-I: Linear PCM; IPB: AAC)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Pentax 645 bayonet Canon RF
Lens: n/a Canon RF 24-105mm F4 L IS USM
Focal Length (35mm equivalent):   24 - 105mm
Focal Length (actual):   24 - 105mm
Zoom Ratio:   4.38x
Aperture Range:   f/4 - f/22; with 9 blades
Integrated ND Filter: No
Normal Focus Range:   39 cm to Infinity
15.4 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 77.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom:
Digital Zoom Values:    
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 27-point SAFOX 11+ Phase Difference Detection (25 cross type focus points in the center): Spot, Select, Expanded Area AF (S, M, L), Zone Select, Auto (27 AF Points) Phase Detection AF: Dual Pixel CMOS AF; Max. 5655 points (selectable); Face+Tracking AF (with eye detection), 1-point AF ([AF frame size] can be set to [Small]), Expand AF Area (Above, below, left and right/Around); Zone AF Large Zone AF (Vertical/Horizontal)
Auto Focus Assist Light? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: Trapezoid prism finder w/ interchangeable Natural-Bright-Matte focusing screen; Coverage: ~98%; Magnification: ~0.62x (55mmF2.8 at infinity), ~0.85x (75mmF2.8 at infinity); Diopter: -3.5 m to + 2.0 m-1; Eye Relief: ~21 mm (from view window), ~24.1 mm (from center of lens) EVF; 0.5-inch OLED, 3.69 million dots, 100% coverage, 0.76x magnification, 23mm eyepoint, -4 to +3 diopter, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: n/a 3,690,000 dots
Viewfinder Magnification (35mm equivalent): 0.78x 0.76x
Viewfinder Magnification (nominal/claimed): 0.62x 0.76x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.2
Rear Display Resolution: 1,036,800 dots (345,600 px) 2,100,000 dots
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x  
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 204800 40000
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-204800 in 1, 1/2 or 1/3EV steps Auto, 100-40000 in 1/3 or 1 EV steps, expandable to 50 (L), 51200 (H1) and 102400 (H2)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten, Flash, CTE; Manual mode(s): Manual (up to 3 settings can be saved), Color Temperature (up to 3 settings can be saved), Copying the white balance settings of a captured image possible Auto (Ambience priority/White priority), Daylight, Shade, Cloudy, Tungsten Light, White Fluorescent Light, Flash, Custom, Color Temperature
Shutter Speed Range: 1/4000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 86K-pixel RBG sensor: Multi-segment metering, Center-weighted metering, Spot metering Real-time metering with image sensor; 384 [24x16] zone Evaluative (AF point-linked), Center-weighted, Partial (center 6.1% of frame), Spot (center 2.7% of frame; AF point-linked spot metering not provided.)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Sensitivity Priority, Shutter & Aperture Priority; HDR Capture: Auto, Type1, Type2, Type3, Exposure Bracket Value adjustable, Auto Align (automatic composition correction function) available; Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing (Random, Preset 1-3, Favorite 1-3) Custom shooting mode C1, C2, C3; Multiple-exposure; HDR
Self Timer: 2 or 12 seconds 2, 10 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: P-TTL; high-speed sync, wireless sync supported with compatible flash unit n/a
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/125 1/200s
Flash Exposure Compensation: -2 to +1 EV +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot shoe, X-sync socket Hot Shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-II
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit PEF / DNG RAW, TIFF RAW (14 bit), C-RAW; RAW+JPEG
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MP4 (Video: MPEG4 AVC/H.264 Variable (averaged) bit rate; Audio:ALL-I: Linear PCM; IPB: AAC)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No Yes
External Connections: USB 3.0 Super Speed USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired or wireless Via Wi-Fi or Bluetooth or optional wired
Connections (extended): Micro (Type-D) HDMI, DC input, Stereo microphone jack, wired remote socket Mini HDMI (Type C), USB-C SuperSpeed USB (USB 3.1 Gen 1), 3.5mm stereo microphone and headphone jacks, remote jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.35 0.31
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.33  
Buffer size for RAW shooting in single shot mode (frames): 10  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.33 0.30
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 3.1 8.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 12 126
RAW shooting speed in burst mode (fps): 3.1 8.0
Buffer size for RAW shooting in burst mode (frames): 10 65
RAW+JPEG shooting speed in burst mode (fps): 3.1 8.0
Buffer Size for RAW+JPEG shooting in burst mode (frames): 10 51
Shutter lag (full AF, wide/mid): 0.16 seconds 0.10 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 1.17 seconds  
Shutter lag (prefocused, live view - DSLR): 0.385 seconds  
Shutter Lag (manual focus): 0.117 seconds 0.076 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.112 seconds 0.052 seconds
Shutter Lag (notes): OVF: Full AF lag, wide-area mode = 0.170s Live View: Full AF lag, Spot AF mode = 1.174s Prefocused = 0.385s  
Startup Time: 1.5 seconds 2.1 seconds
Play -> Record Time: 0.7 seconds 0.9 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   370 shots
Battery Life, Still (CIPA Rating OVF/EVF): 650 shots 350 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI90 Proprietary LP-E6N/LP-E6
Usable Battery Types: Lithium-ion rechargeable Lithium-ion Rechargeable or BG-E22 battery grip
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary LP-E6N Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No Yes
Software
Included Software:    
OS Compatibility:    
Miscellaneous
Notes & Features: New 51.4MP AA-filterless CMOS sensor, PRIME III processor, 27-point SAFOX 11 AF, 86K RGB metering, Full HD video up to 60i, tilting LCD monitor with Live View, 3fps full-res continuous burst mode.