• Medium format 1,436.6mm2
  • 51.4 megapixels
  • ISO 100 - 204,800
  • APS-C 337.5mm2
  • 32.5 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax 645Z
  • Canon EOS 90D
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax 645D
645D vs 645Z
Canon 80D
80D vs 90D
Successor:    
General
Model Number: 645Z 90D
Alternate Model Number(s):    
Camera Format: Pro SLR SLR
Currently Manufactured: Yes Yes
Retail Price: $8499.95 $1599.00
Street Price: $4,845.43 $1,099.00
Date Available: 2014-06-15 2019-09-15
Tripod Mount: Yes Yes
Weight: 54.9 oz (1,555 g)
includes batteries
42.9 oz (1,216 g)
includes batteries, kit lens
Size: 6.1 x 4.6 x 4.8 in.
(156 x 117 x 123 mm)
5.5 x 4.1 x 3.0 in.
(141 x 105 x 77 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Canon
Effective Megapixels: 51.4 32.5
Sensor Format: Medium format APS-C
Sensor size: 1436.64mm2 (43.80mm x 32.80mm) 337.5mm2 (22.50mm x 15.00mm)
Approximate Pixel Pitch: 5.31 microns 3.23 microns
Focal Length Multiplier: 0.8x 1.6x
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  
DxO Color Depth Score (bits): 26.0  
DxO Dynamic Range Score (evs): 14.7  
DxO Maximum Effective ISO Score (iso): 4,505  
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)
6960 x 4640 (32.3 MP, 3:2),
4800 x 3200 (15.4 MP, 3:2),
3472 x 2320 (8.1 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6160 x 4640 (28.6 MP, 4:3),
4256 x 3200 (13.6 MP, 4:3),
3072 x 2320 (7.1 MP, Other),
2112 x 1600 (3.4 MP, Other),
6960 x 3904 (27.2 MP, 16:9),
4800 x 2688 (12.9 MP, Other),
3472 x 1952 (6.8 MP, 16:9),
2400 x 1344 (3.2 MP, Other),
4640 x 4640 (21.5 MP, 1:1),
3200 x 3200 (10.2 MP, 1:1),
2320 x 2320 (5.4 MP, 1:1),
1600 x 1600 (2.6 MP, 1:1)
Image File Format: JPEG, 14-bit PEF / DNG RAW, TIFF JPEG (EXIF 2.31), 14-bit .CR3 RAW, C-RAW, RAW+JPEG, C-RAW+JPEG
Continuous-mode frames/second: 3.1 10.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p)
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MOV (Video: H.264 All-I, Audio: Stereo Linear PCM), MP4 (Video: H.264 IPB/IPB Light, Audio: 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 EF/EF-S
Lens: n/a Canon EF-S 18-135mm f/3.5-5.6 IS USM
Focal Length (35mm equivalent):   29 - 216mm
Focal Length (actual):   18 - 135mm
Zoom Ratio:   7.50x
Aperture Range:   f/3.5 - f/22 (wide) / f/5.6 - f/36 (tele)
Integrated ND Filter: No No
Normal Focus Range:   39 cm to Infinity
15.4 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 67.0mm
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) OVF: AF-dedicated CMOS sensor, 45-points, up to 45 cross-type (f/5.6), 1 dual-cross (f/2.8 and f/5.6), 27 support f/8 (9 cross-type); Live View: Dual-Pixel CMOS AF
Auto Focus Assist Light? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / 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) SLR type; eye-level pentaprism, ~100% coverage, ~0.95x magnification, 22mm eyepoint, -3 to +1 diopter
Focus Peaking: Yes No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.78x 0.59x
Viewfinder Magnification (nominal/claimed): 0.62x 0.95x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.0
Rear Display Resolution: 1,036,800 dots (345,600 px) 1,040,000 dots (346,600 px)
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 25600
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-204800 in 1, 1/2 or 1/3EV steps Auto, 100 - 25600 in 1/3 or 1EV steps, Expandable to 51200
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 (with White or Ambience Priority), Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom, Kelvin 2,500K - 10,000K
Shutter Speed Range: 1/4000 - 30 sec 1/16000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 86K-pixel RBG sensor: Multi-segment metering, Center-weighted metering, Spot metering 220K-pixel RGB+IR metering sensor: 216-zone Evaluative (linked to all AF points), Center-weighted, Partial (6.5%), Spot (2.0%); 384 zones in Live View mode
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) Creative Auto, Scene (Portrait, Landscape, Close-up, Sports, Group Photo, Panning, Food, Kids, Candlelight, Night Portrait, Handheld Night Scene, HDR Backlight Control), 2 Custom User Settings, Creative Filters (Fish-eye, Water-painting, Grainy Black and White, Soft Focus, Toy Camera, Miniature, HDR Art (Standard/Vivid/Bold/Embossed)
Self Timer: 2 or 12 seconds 10 or 2 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: No Yes
Flash Modes: P-TTL; high-speed sync, wireless sync supported with compatible flash unit Auto, Manual flash, Integrated Speedlite Transmitter
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: n/a Lens aperture dependent; GN= 12m (39.4 ft.) at ISO 100, works out to about 11.2 feet at f/3.5 and 7 feet at f/5.6
Max Flash Sync: 1/125 1/250
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:   Full TTL exposure
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 14-bit .CR3 RAW, C-RAW, RAW+JPEG, C-RAW+JPEG
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MOV (Video: H.264 All-I, Audio: Stereo Linear PCM), MP4 (Video: H.264 IPB/IPB Light, Audio: 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 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired or wireless Optional wired or wireless
Connections (extended): Micro (Type-D) HDMI, DC input, Stereo microphone jack, wired remote socket Mini (Type-C) HDMI, Micro-B USB 2.0, 3.5mm Microphone Jack, 3.5mm Headphone Jack, Wired Remote Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.35 <0.3
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 0.31
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 3.1 10.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 12 57
RAW shooting speed in burst mode (fps): 3.1 10.0
Buffer size for RAW shooting in burst mode (frames): 10 27
RAW+JPEG shooting speed in burst mode (fps): 3.1 10.0
Buffer Size for RAW+JPEG shooting in burst mode (frames): 10 26
Shutter lag (full AF, wide/mid): 0.16 seconds 0.13 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 0.056 seconds
Shutter Lag (manual focus): 0.117 seconds 0.080 seconds
Shutter lag (full AF, with flash):   0.16 seconds
Shutter Lag (prefocused): 0.112 seconds 0.057 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 Default EFCS mode used. Electronic shutter mode: Full AF lag = 0.231s, Manual focus lag = 0.079s, Prefocused lag = 0.056s
Startup Time: 1.5 seconds 0.4 seconds
Play -> Record Time: 0.7 seconds 0.2 seconds
Flash cycle time, full power:   3.2 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   450 shots
Battery Life, Still (CIPA Rating OVF/EVF): 650 shots 1300 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI90 Proprietary
Usable Battery Types: Lithium-ion rechargeable LP-E6N or LP-E6 Lithium-ion rechargeable
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 No
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.