• 1/2.5 inch 24.7mm2
  • 8.2 megapixels
  • 37.00mm - 185.00mm (35mm eq.)
  • Medium format 1,436.6mm2
  • 51.4 megapixels
  • ISO 100 - 204,800
  • Detailed specifications
  • Fujifilm FinePix J50
  • Pentax 645Z
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax 645D
645D vs 645Z
Successor:    
General
Model Number: J50 645Z
Alternate Model Number(s):    
Camera Format: Ultra Compact Pro SLR
Currently Manufactured: No Yes
Retail Price: $179.95 $8499.95
Street Price:   $4,845.43
Date Available: 2008-03-30 2014-06-15
Tripod Mount: No Yes
Weight: 5.0 oz (141 g) 54.9 oz (1,555 g)
includes batteries
Size: 3.8 x 2.2 x 0.9 in.
(96 x 55 x 23 mm)
6.1 x 4.6 x 4.8 in.
(156 x 117 x 123 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 8.2 51.4
Sensor Format: 1/2.5 inch Medium format
Sensor size: 24.7104mm2 (5.76mm x 4.29mm) 1436.64mm2 (43.80mm x 32.80mm)
Approximate Pixel Pitch: 1.76 microns 5.31 microns
Focal Length Multiplier: n/a 0.8x
Aspect Ratio: 4:3, 3:2 4:3
Color Filter Type:   RGBG
Anti Aliasing Filter:   None
Self-Cleaning: No Yes
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
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: 3264 x 2448 (8.0 MP, 4:3),
3264 x 2176 (7.1 MP, 3:2),
2304 x 1728 (4.0 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
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)
Image File Format: JPEG JPEG, 14-bit PEF / DNG RAW, TIFF
Continuous-mode frames/second: n/a 3.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 320x240 (30) 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
Movie File Format: AVI (Motion JPEG) MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Pentax 645 bayonet
Lens: Fujinon Zoom n/a
Focal Length (35mm equivalent): 37 - 185mm  
Focal Length (actual): 6.2 - 31mm  
Zoom Ratio: 5.00x  
Aperture Range: f/3.2 - f/5.2 (wide); f/4.8 - f/8.0 (tele)  
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity
 
Macro Focus Range: 5 - 80 cm
2.0 - 31.5 in
 
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values: Up to 6.9x  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect Auto Focus (Center) 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)
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: 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)
Focus Peaking: No Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.78x
Viewfinder Magnification (nominal/claimed):   0.62x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 230,000 dots 1,036,800 dots (345,600 px)
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:   16.0x
Top Deck Display: Yes
Exposure
Maximum ISO (native):   204800
Minimum ISO (native):   100
ISO Settings: Auto, 100, 200, 400, 800 Auto, 100-204800 in 1, 1/2 or 1/3EV steps
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light 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
Shutter Speed Range: 1/1500 - 4 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation:   +/- 5.0EV in 0.3EV steps
Metering Modes: TTL 64-zones metering 86K-pixel RBG sensor: Multi-segment metering, Center-weighted metering, Spot metering
Program Auto Exposure: No Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Baby, Picture Stabilization, Portrait, Landscape, Sport, Night, Natural light, Beach, Snow, Fireworks, Sunset, Flower, Party, Museum, Text, Manual 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)
Self Timer: 2 or 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Red-eye Reduction, Forced Flash, Suppressed Flash, Slow Synchro., Slow Synchro with Red-eye Reduction P-TTL; high-speed sync, wireless sync supported with compatible flash unit
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: Wide angle: approx. 0.5m / 1.6 ft. to 3.5m / 11.5 ft.; Telephoto: approx. 0.5m / 1.6 ft. to 2.2m / 7.2 ft.; Macro: approx. 0.5m / 1.6 ft. to 0.8m / 2.6 ft. n/a
Max Flash Sync:   1/125
Flash Exposure Compensation:   -2 to +1 EV
External Flash Connection: n/a Hot shoe, X-sync socket
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC / xD SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No Yes
RAW Capture Support: No Yes
Uncompressed Format:   14-bit PEF / DNG RAW, TIFF
Movie File Format: AVI (Motion JPEG) MOV (MPEG-4 AVC/H.264) with stereo sound; Motion JPEG (AVI) for Interval Movie Record
Included Memory: 12.0 MB No memory included
Included Memory Type: Internal  
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 Full (LOW) Speed USB 3.0 Super Speed
PictBridge Compliant: No No
DPOF Compliant: Yes No
Remote Control: No Yes
Remote Control Type:   Optional wired or wireless
Connections (extended):   Micro (Type-D) HDMI, DC input, Stereo microphone jack, wired remote socket
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.35
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
Camera penalizes early shutter press? Yes
JPEG shooting speed in burst mode (fps, max resolution):   3.1
Buffer size for JPEG shooting in burst mode (frames, max resolution):   12
RAW shooting speed in burst mode (fps):   3.1
Buffer size for RAW shooting in burst mode (frames):   10
RAW+JPEG shooting speed in burst mode (fps):   3.1
Buffer Size for RAW+JPEG shooting in burst mode (frames):   10
Shutter lag (full AF, wide/mid):   0.16 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
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):   0.112 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
Play -> Record Time:   0.7 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF):   650 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-40ND Proprietary D-LI90
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-40ND Lithium-ion rechargeable 1 x Proprietary D-LI90 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: FinePix Viewer  
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.