• APS-C 369.7mm2
  • 12.4 megapixels
  • ISO 200 - 6400
  • 35mm 861.6mm2
  • 36.3 megapixels
  • ISO 100 - 6400
  • Detailed specifications
  • Pentax K-x
  • Nikon D800E
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K2000
K2000 vs K-x
 
Successor: Pentax K-r
K-x vs K-r
Nikon D810
D800E vs D810
General
Model Number: K-x D800E
Alternate Model Number(s):    
Camera Format: SLR Pro SLR
Currently Manufactured: No No
Retail Price: $649.95 $3299.95
Street Price: $701.76 $2,211.73
Date Available: 2009-10-15 2012-04-15
Tripod Mount: Yes Yes
Weight: 27.9 oz (791 g)
includes batteries, kit lens
35.6 oz (1,008 g)
includes batteries
Size: 4.8 x 3.6 x 2.7 in.
(122 x 92 x 69 mm)
5.7 x 4.8 x 3.2 in.
(146 x 123 x 82 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 12.4 36.3
Sensor Format: APS-C 35mm
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 5.53 microns 4.88 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 72 96
DxO Color Depth Score (bits): 22.8 25.6
DxO Dynamic Range Score (evs): 12.5 14.3
DxO Maximum Effective ISO Score (iso): 811 2,979
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)
7360 x 4912 (36.2 MP, 3:2),
5520 x 3680 (20.3 MP, 3:2),
3680 x 2456 (9.0 MP, 3:2),
6114 x 4080 (24.9 MP, 3:2),
4608 x 3056 (14.1 MP, Other),
3072 x 2040 (6.3 MP, Other),
4800 x 3200 (15.4 MP, 3:2),
3600 x 2400 (8.6 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6144 x 4912 (30.2 MP, 5:4),
4608 x 3680 (17.0 MP, 5:4),
3072 x 2456 (7.5 MP, 5:4)
Image File Format: JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) JPEG (EXIF 2.3), RAW (NEF), 14 or 12-bit; TIFF
Continuous-mode frames/second: 4.3 4.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (24)
640x416 (24)
1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p)
Movie File Format:   MOV (H.265/MPEG-4 AVC, Linear PCM audio)
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) Nikon F
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 Yes
Digital Zoom Values: n/a 1.2x, 1.5x (DX), 5:4 crop modes
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 51-point TTL phase detection via Nikon Advanced Multi-CAM 3500FX including 15 cross-type sensors; f/8 supported by 11 central sensors; Contrast detection AF in Live View mode
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 SLR; eye-level pentaprism, 100% coverage, 0.7x magnification, 17mm eyepoint, -3 to +1 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.57x 0.70x
Viewfinder Magnification (nominal/claimed): 0.85x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 230,000 dots 921,600 dots (307,200 px)
Touchscreen: No No
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 6400
Minimum ISO (native): 200 100
ISO Settings: Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 Auto, 100 - 6400 in 1/3, 1/2 or 1EV steps, plus down to 50 in Lo-1, up to 25,600 in Hi-2
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom Auto (2), Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual (4), Color Temperature (2,500K-10,000K); Fine-tuning available for all options.
Shutter Speed Range: 1/6000 - 30 sec 1/8000 - 30 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 91K-pixel 3D Color Matrix Metering III, Center-weighted (weight of 75% given to 12-mm circle in center of frame; diameter of circle can be changed to 8, 15 or 20 mm, or weighting can be based on average of entire frame), Spot (4mm circle or about 1.5% frame, centered on selected focus area)
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 None
Self Timer: 2 or 12 seconds 2/5/10/20 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: On, off, redeye, slow sync, slow sync w redeye, slow sync w trailing curtain, wireless Front-curtain sync, Slow sync, Rear-curtain sync, Red-eye reduction, Red-eye reduction with slow sync; supports Advanced Wireless Lighting system
Flash Guide Number (ISO 100): 11.3 m / 37.1 ft. 12.0 m / 39.4 ft.
Flash Range Description: Depends on lens Lens aperture dependent
Max Flash Sync: 1/180 1/250 (up to 1/320s with lower flash range)
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Hot Shoe ISO-type hot-shoe, PC Sync terminal
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC CF1 / SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:   UDMA7/UHS-I compliant
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) RAW (NEF), 14 or 12-bit; TIFF
Movie File Format:   MOV (H.265/MPEG-4 AVC, Linear PCM audio)
Included Memory: No memory included No memory included
Included Memory Type:    
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 Yes
External Connections: USB 2.0 High Speed USB 3.0 Super Speed
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR Optional wired or wireless
Connections (extended): AC adapter available Mini HDMI (Type C), 10-pin Expansion Terminal (GP-1 GPS compatible), Stereo Mic Mini Jack (3.5mm), Stereo Audio Out (3.5mm)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.39 0.42
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.43 0.39
Buffer size for RAW shooting in single shot mode (frames): 10 23
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.46
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 4.3 4.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 25 54
RAW shooting speed in burst mode (fps):   4.0
Buffer size for RAW shooting in burst mode (frames):   18
RAW+JPEG shooting speed in burst mode (fps):   4.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   14
Shutter lag (full AF, wide/mid): 0.10 seconds 0.21 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   1.74 seconds
Shutter lag (prefocused, live view - DSLR):   0.184 seconds
Shutter Lag (manual focus): 0.082 seconds 0.044 seconds
Shutter lag (full AF, with flash): 0.23 seconds 0.22 seconds
Shutter Lag (prefocused): 0.082 seconds 0.043 seconds
Shutter Lag (notes): Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s OVF, Full Autofocus, 51-point Auto Area = 0.306s Live View, Full Autofocus = 1.735s Live View, Prefocused = 0.184s
Startup Time: 0.6 seconds 0.3 seconds
Play -> Record Time: 0.2 seconds 0.2 seconds
Flash cycle time, full power: 3.3 seconds 3.8 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 420 shots (NiMH AA) 900 shots
Battery Life, Video:    
Battery Form Factor: 4 x AA Proprietary EN-EL15
Usable Battery Types: Lithium, Alkaline disposables; NiMH rechargeables Lithium-ion rechargeable or MB-D12 battery grip
Batteries Included: 4 x AA Alkaline disposables 1 x Proprietary EN-EL15 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: CD-ROM Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows XP/Vista/7, MacOS-X 10.3+ Windows, Mac OS X
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. Limited edition Nikon D800 variant, with no low-pass filter (LPF) effect. IR cut and antireflective coating properties of the optical filter remain the same.