• Medium format 1,436.6mm2
  • 51.4 megapixels
  • ISO 100 - 204,800
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600
  • Detailed specifications
  • Pentax 645Z
  • Olympus OM-D E-M1 II
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax 645D
645D vs 645Z 		Olympus E-M1
E-M1 vs E-M1 II
Successor:   Olympus E-M1 Mark III
E-M1 II vs E-M1 Mark III
General
Model Number: 645Z E-M1 II
Alternate Model Number(s):    
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $8499.95 $1999.99
Street Price: $4,845.43 $949.00
Date Available: 2014-06-15 2016-12-31
Tripod Mount: Yes Yes
Weight: 54.9 oz (1,555 g)
includes batteries 		20.2 oz (574 g)
includes batteries
Size: 6.1 x 4.6 x 4.8 in.
(156 x 117 x 123 mm) 		5.3 x 3.6 x 2.7 in.
(134 x 91 x 69 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS Live MOS
Sensor Manufacturer: Sony  
Effective Megapixels: 51.4 20.4
Sensor Format: Medium format 4/3
Sensor size: 1436.64mm2 (43.80mm x 32.80mm) 226.2mm2 (17.40mm x 13.00mm)
Approximate Pixel Pitch: 5.31 microns 3.36 microns
Focal Length Multiplier: 0.8x 2.0x
Aspect Ratio: 4:3 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 101 80
DxO Color Depth Score (bits): 26.0 23.7
DxO Dynamic Range Score (evs): 14.7 12.8
DxO Maximum Effective ISO Score (iso): 4,505 1,312
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) 		5184 x 3888 (20.2 MP, 4:3),
3712 x 2784 (10.3 MP, 4:3),
2624 x 1968 (5.2 MP, 4:3),
1824 x 1368 (2.5 MP, 4:3),
1024 x 768 (0.8 MP, 4:3)
Image File Format: JPEG, 14-bit PEF / DNG RAW, TIFF JPEG, 12-bit lossless compressed RAW (.ORF), RAW + JPEG
Continuous-mode frames/second: 3.1 60.6
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p) 		4096x2160 (24p)
3840x2160 (30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
4096x2160 (15p/​12p/​8p/​6p/​3p)
3840x2160 (25p/​24p/​15p/​12p/​8p/​6p/​3p)
1920x1080 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
1280x720 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
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 Micro Four Thirds
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values:   2x (3x in movie mode)
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) Advanced Dual FAST AF: Hybrid Phase-detect/Contrast-detect AF, 121 AF points, all cross-type; All target, group target (9-area or 5- area), single target
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; High-speed (120fps) low latency (6ms) 2.36M-dot LCD, 1.30x - 1.48x magnification, 100% coverage, 21mm eyepoint, -4 to +2 diopter, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: n/a 2,360,000 dots
Viewfinder Magnification (35mm equivalent): 0.78x 0.74x
Viewfinder Magnification (nominal/claimed): 0.62x 1.48x
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) 1,037,000 dots (345,667 px)
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x 14.0x
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 204800 25600
Minimum ISO (native): 100 200
ISO Settings: Auto, 100-204800 in 1, 1/2 or 1/3EV steps AUTO ISO: LOW (approx. 64) - 6400 with customizable upper limit (200 - 6400); Manual ISO: Low (approx. 64) - 25600, 1/3 or 1 EV steps selectable
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, Lamp, Fluorescent, Daylight, Flash, Cloudy, Shade, Custom WB (Kelvin), One-touch WB (4); WB Tuning: +/-7 steps along A-B / G-M axis
Shutter Speed Range: 1/4000 - 30 sec 1/32000 - 60 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 Digital ESP metering (324-area multi pattern metering), Center weighted average metering, Spot metering, Spot metering with highlight control, Spot metering with shadow control
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) 3 Custom settings; Art Filter (Pop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Water Color, Vintage, Partial Color, Soft Focus Effect, Pin-Hole Effect, White Edge Effect, Frame Effect, Star Light Effect, Blur Effect, B&W Effect, Picture Tone, Shade Effect), Underwater Wide/Underwater Macro, HDR1/2, Live Bulb, Live Time, Live Composite, Focus Stacking
Self Timer: 2 or 12 seconds 2, 10, Custom seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No 80.0 megapixels
Flash
Built-in Flash: No No
Flash Modes: P-TTL; high-speed sync, wireless sync supported with compatible flash unit Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual 1/1 (FULL) - 1/64
Flash Guide Number (ISO 100): n/a 9.0 m / 29.5 ft.
Flash Range Description: n/a Bundled FL-LM3 flash has GN of 9m/ISO 100
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, PC Sync Terminal
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:   Slot 1: UHS-II, Slot 2: UHS-I
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit PEF / DNG RAW, TIFF 12-bit lossless compressed RAW (.ORF), RAW + JPEG
Movie File Format: MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No No
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,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired or wireless Optional wired or via Wi-Fi
Connections (extended): Micro (Type-D) HDMI, DC input, Stereo microphone jack, wired remote socket Micro HDMI (Type-D), USB 3.0 Type C, 3.5mm external mic jack, 3.5mm external headphone jack, 2.5mm 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 <0.3
Camera penalizes early shutter press? Yes No
JPEG shooting speed in burst mode (fps, max resolution): 3.1 60.6
Buffer size for JPEG shooting in burst mode (frames, max resolution): 12 51
RAW shooting speed in burst mode (fps): 3.1 60.6
Buffer size for RAW shooting in burst mode (frames): 10 51
RAW+JPEG shooting speed in burst mode (fps): 3.1 60.6
Buffer Size for RAW+JPEG shooting in burst mode (frames): 10 50
Shutter lag (full AF, wide/mid): 0.16 seconds 0.11 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 0.052 seconds
Shutter lag (full AF, with flash):   0.37 seconds
Shutter Lag (prefocused): 0.112 seconds 0.032 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 0.8 seconds
Play -> Record Time: 0.7 seconds 0.6 seconds
Flash cycle time, full power:   6.9 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   440 shots
Battery Life, Still (CIPA Rating OVF/EVF): 650 shots  
Battery Life, Video:   90 minutes
Battery Form Factor: Proprietary D-LI90 Proprietary BLH-1
Usable Battery Types: Lithium-ion rechargeable 1720mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary BLH-1 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:   Olympus Viewer 3
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.