• APS-C 369.7mm2
  • 12.4 megapixels
  • ISO 200 - 6400
  • Medium format 2,169.5mm2
  • 101.1 megapixels
  • ISO 50 - 12,800
  • Detailed specifications
  • Pentax K-x
  • Phase One XF 100MP
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K2000
K2000 vs K-x
 
Successor: Pentax K-r
K-x vs K-r
 
General
Model Number: K-x XF 100MP
Alternate Model Number(s):   XF IQ3 100MP
Camera Format: SLR SLR
Currently Manufactured: No Yes
Retail Price: $649.95 $48990.00
Street Price: $701.76 $48,990.00
Date Available: 2009-10-15 2016-01-04
Tripod Mount: Yes Yes
Weight: 27.9 oz (791 g)
includes batteries, kit lens
77.5 oz (2,196 g)
includes batteries
Size: 4.8 x 3.6 x 2.7 in.
(122 x 92 x 69 mm)
6.0 x 5.3 x 6.3 in.
(152 x 135 x 160 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 12.4 101.1
Sensor Format: APS-C Medium format
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 2169.48mm2 (53.70mm x 40.40mm)
Approximate Pixel Pitch: 5.53 microns 4.63 microns
Focal Length Multiplier: 1.5x 0.6x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 72  
DxO Color Depth Score (bits): 22.8  
DxO Dynamic Range Score (evs): 12.5  
DxO Maximum Effective ISO Score (iso): 811  
Image Capture
Image Resolution: 4288 x 2848 (12.2 MP, Other),
3936 x 2624 (10.3 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1728 x 1152 (2.0 MP, 3:2)
11608 x 8708 (101.1 MP, 4:3)
Image File Format: JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) RAW only, 16-bit IIQ file, lossless and near lossless compression options
Continuous-mode frames/second: 4.3 n/a
Video Capture
Can take movies: Yes No
Movie Resolution: 1280x720 (24)
640x416 (24)
Movie File Format:   N/A. Can stream Live View via USB 3.0, or over HDMI at up to 1080p30
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: No n/a
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2/3) Phase One XF / Hasselblad H
Lens: smc Pentax DA L 18-55mm f/3.5-5.6 AL n/a
Focal Length (35mm equivalent): 27 - 84mm  
Focal Length (actual): 18 - 55mm  
Zoom Ratio: 3.00x  
Aperture Range: f/3.5 - 22 (W), f/5.6 - 38 (T)  
Integrated ND Filter: No No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: 52.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: SAFOX VIII TTL phase-detect 11 point (9 cross) AF: 11 pt auto, 5 pt auto, AF pt select, center/spot Hybrid Autofocus with HAP-1 1MP CMOS Sensor; Spot, Average, Hyperfocal AF modes; Single or Continous AF modes
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / LCD
Viewfinder Type: SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter Modular viewfinders (90-degree pentaprism or waist level), 97% coverage, adjustable or exchangeable diopter, interchangeable focus screen (Matte (default), Split, Center Prism)
Focus Peaking: No Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.57x  
Viewfinder Magnification (nominal/claimed): 0.85x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 230,000 dots 1,152,000 dots (384,000 px)
Touchscreen: No Yes
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x  
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 6400 12800
Minimum ISO (native): 200 50
ISO Settings: Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 Auto, ISO 50-12800
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom Auto, Daylight, Fluorescent, Tungsten, Flash, Custom
Shutter Speed Range: 1/6000 - 30 sec 1/4000 - 3600 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 16-segment Multi, Center-weighted, Spot Average, Spot and Auto
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Auto Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Standard Flash Off), Scene (Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage Lighting [JPG], Night Snap [JPG]), Sensitivity Priority Focus Stack Tool, HDR Sequence Tool
Self Timer: 2 or 12 seconds 0.5-60 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: On, off, redeye, slow sync, slow sync w redeye, slow sync w trailing curtain, wireless n/a
Flash Guide Number (ISO 100): 11.3 m / 37.1 ft. n/a
Flash Range Description: Depends on lens n/a
Max Flash Sync: 1/180 1/125 (focal plane shutter); 1/1600 (leaf shutter)
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps  
External Flash Connection: Hot Shoe Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control: Full TTL exposure Trigger Only
Image Storage
Usable Memory Types: SD / SDHC CF1
UHS Support:    
Other Memory:   UDMA7 supported
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) 16-bit IIQ file, lossless and near lossless compression options
Movie File Format:   N/A. Can stream Live View via USB 3.0, or over HDMI at up to 1080p30
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: No No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 3.0 Super Speed,FireWire,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes No
Remote Control: Yes Yes
Remote Control Type: Optional IR Via remote port, USB, Firewire or Wi-Fi
Connections (extended): AC adapter available IQ3: USB 3.0, Firewire 400/800, Micro (Type-D) HDMI, 8-pin multi-connector port; XF: 12-pin multi-connector port
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.39  
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.43 1.87
Buffer size for RAW shooting in single shot mode (frames): 10  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 4.3  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 25  
RAW shooting speed in burst mode (fps):   0.6
Buffer size for RAW shooting in burst mode (frames):   Unlimited
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid): 0.10 seconds 0.33 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):   0.251 seconds
Shutter Lag (manual focus): 0.082 seconds 0.351 seconds
Shutter lag (full AF, with flash): 0.23 seconds  
Shutter Lag (prefocused): 0.082 seconds 0.352 seconds
Shutter Lag (notes): Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s  
Startup Time: 0.6 seconds 10.0 seconds
Play -> Record Time: 0.2 seconds 2.4 seconds
Flash cycle time, full power: 3.3 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 420 shots (NiMH AA)  
Battery Life, Video:    
Battery Form Factor: 4 x AA Proprietary (2 identical batteries required)
Usable Battery Types: Lithium, Alkaline disposables; NiMH rechargeables Lithium-ion rechargeable
Batteries Included: 4 x AA Alkaline disposables 4 x Proprietary Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: Yes
Software
Included Software: CD-ROM Capture One Pro 9
OS Compatibility: Windows XP/Vista/7, MacOS-X 10.3+ Mac and Windows
Miscellaneous
Notes & Features: Sensor-shift shake reduction, 720p HD video capture, Live View with face detection. Available in black or white. Limited edition colors of red and navy will become available at select locations to be announced.