• APS-C 368.2mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • 35mm 861.6mm2
  • 36.3 megapixels
  • ISO 100 - 6400
  • Detailed specifications
  • Pentax K20D
  • Nikon D800E
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K10D
K10D vs K20D
 
Successor: Pentax K-7
K20D vs K-7
Nikon D810
D800E vs D810
General
Model Number: K20D D800E
Alternate Model Number(s):    
Camera Format: Pro SLR Pro SLR
Currently Manufactured: No No
Retail Price: $799.95 $3299.95
Street Price:   $2,211.73
Date Available: 2008-04-30 2012-04-15
Tripod Mount: Yes Yes
Weight: 28.3 oz (802 g)
includes batteries
35.6 oz (1,008 g)
includes batteries
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 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: 14.6 36.3
Sensor Format: APS-C 35mm
Sensor size: 368.16mm2 (23.60mm x 15.60mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 5.05 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: 65 96
DxO Color Depth Score (bits): 22.9 25.6
DxO Dynamic Range Score (evs): 11.1 14.3
DxO Maximum Effective ISO Score (iso): 639 2,979
Image Capture
Image Resolution: 4672 x 3104 (14.5 MP, Other),
3872 x 2592 (10.0 MP, Other),
3008 x 2000 (6.0 MP, 3:2),
1824 x 1216 (2.2 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), RAW (.PEF, .DNG) JPEG (EXIF 2.3), RAW (NEF), 14 or 12-bit; TIFF
Continuous-mode frames/second: 2.8 4.0
Video Capture
Can take movies: No Yes
Movie Resolution: 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) Nikon F
Lens: n/a n/a
Focal Length (35mm equivalent):    
Focal Length (actual):    
Zoom Ratio:    
Aperture Range:    
Integrated ND Filter: No 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: 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: 11-point TTL phase-matching (SAFOX VIII) 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; eye-level pentaprism, coverage: 95%, magnification: 0.95x, diopter: -2.5 to 1.5 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): 0.63x 0.70x
Viewfinder Magnification (nominal/claimed): 0.95x 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: 32.0x  
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 3200 6400
Minimum ISO (native): 100 100
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) 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 (W, D, N), Flash, Color Temperature 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: 1/4000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 16-segment, 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: Sensitivity Priority, Shutter and Aperture 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, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, 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): 13.0 m / 42.7 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 0.3EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Hot Shoe, PC-Sync Socket 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: 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: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wired or IR Optional wired or wireless
Connections (extended): DC input, wired remote 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): 0.36 0.39
Buffer size for RAW shooting in single shot mode (frames): 11 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): 2.8 4.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 38 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): 0.17 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): 0.090 seconds 0.044 seconds
Shutter lag (full AF, with flash): 0.24 seconds 0.22 seconds
Shutter Lag (prefocused): 0.089 seconds 0.043 seconds
Shutter Lag (notes): Live View: Full AF = n/a Prefocused = 0.659s Prefocused with flash = 2.395s OVF, Full Autofocus, 51-point Auto Area = 0.306s Live View, Full Autofocus = 1.735s Live View, Prefocused = 0.184s
Startup Time: 0.4 seconds 0.3 seconds
Play -> Record Time: 0.5 seconds 0.2 seconds
Flash cycle time, full power: 3.1 seconds 3.8 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 530 shots 900 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI50 Proprietary EN-EL15
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable or MB-D12 battery grip
Batteries Included: 1 x Proprietary D-LI50 Lithium-ion rechargeable 1 x Proprietary EN-EL15 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: CD-ROM S-SW74/75 Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows XP/Vista, MacOS 10.2 or later Windows, Mac OS X
Miscellaneous
Notes & Features: PENTAX-developed Shake Reduction (SR) system; Weather and dust resistant body; Live View mode that allows users to see the full image area to confirm composition, focus status and lighting on the large 2.7 inch LCD monitor; Expanded Dynamic Range function; Improved Dust Reduction system that features the new Dust Alert function to pinpoint the exact location of dust particles for the photographer to remove. 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.