• APS-C 368.2mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • 35mm 858.0mm2
  • 20.8 megapixels
  • ISO 100 - 102,400
  • Detailed specifications
  • Pentax K20D
  • Nikon D6
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K10D
K10D vs K20D
Nikon D5
D5 vs D6
Successor: Pentax K-7
K20D vs K-7
 
General
Model Number: K20D D6
Alternate Model Number(s):    
Camera Format: Pro SLR Pro SLR
Currently Manufactured: No Yes
Retail Price: $799.95 $6499.95
Street Price:    
Date Available: 2008-04-30 2020-05-21
Tripod Mount: Yes Yes
Weight: 28.3 oz (802 g)
includes batteries
44.8 oz (1,270 g)
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 mm)
6.3 x 6.4 x 3.6 in.
(160 x 163 x 92 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 14.6 20.8
Sensor Format: APS-C 35mm
Sensor size: 368.16mm2 (23.60mm x 15.60mm) 858.01mm2 (35.90mm x 23.90mm)
Approximate Pixel Pitch: 5.05 microns 6.45 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 65  
DxO Color Depth Score (bits): 22.9  
DxO Dynamic Range Score (evs): 11.1  
DxO Maximum Effective ISO Score (iso): 639  
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)
5568 x 3712 (20.7 MP, 3:2),
4176 x 2784 (11.6 MP, 3:2),
2784 x 1856 (5.2 MP, 3:2),
4640 x 3088 (14.3 MP, 3:2),
3472 x 2312 (8.0 MP, 3:2),
2320 x 1544 (3.6 MP, 3:2),
4640 x 3712 (17.2 MP, 5:4),
3472 x 2784 (9.7 MP, 5:4),
2320 x 1856 (4.3 MP, 5:4),
3648 x 2432 (8.9 MP, 3:2),
2736 x 1824 (5.0 MP, 3:2),
1824 x 1216 (2.2 MP, 3:2)
Image File Format: JPEG (EXIF 2.21), RAW (.PEF, .DNG) JPEG, NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed, L/M/S; RAW+JPEG
Continuous-mode frames/second: 2.8 n/a
Video Capture
Can take movies: No Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format:   MOV (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM)
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 Yes
Digital Zoom: No
Digital Zoom Values: n/a  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 11-point TTL phase-matching (SAFOX VIII) Nikon Advanced Multi-CAM 20K autofocus sensor module with TTL phase detection and fine-tuning: 153 focus points (including 99 cross-type sensors and 15 sensors that support f/8), of which 55 (35 cross-type sensors and 9 f/8 sensors) are available for selection; Contrast-detect AF in Live View mode
Auto Focus Assist Light? Yes No
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, 0.72x magnification, 17mm eyepoint, -3 to +1 diopter; Type B BriteView Clear Matte Mark X screen with AF area brackets (framing grid can be displayed)
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.63x  
Viewfinder Magnification (nominal/claimed): 0.95x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 230,000 dots 2,359,000 dots (589,750 px)
Touchscreen: No Yes
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 102400
Minimum ISO (native): 100 100
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) Auto, ISO 100 - 102,400, expandable to ISO 50 in Lo-1 to ISO 3,276,800 in Hi-5
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature Auto (3 types), incandescent, fluorescent (7 types), direct sunlight, flash, cloudy, shade, preset manual (up to 6 values can be stored), choose color temperature (2,500K-10,000K), all with fine-tuning
Shutter Speed Range: 1/4000 - 30 sec 1/8000 - 900 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 TTL exposure metering using approximately 180K (180,000) pixel RGB sensor; Matrix: 3D Color Matrix Metering III (type G, E, and D lenses); Color Matrix Metering III (other CPU lenses); Color Matrix Metering available with non-CPU lenses if user provides lens data; Center-weighted: Weight of 75% given to 12mm circle in center of frame. Diameter of circle can be changed to 8, 15, or 20mm, or weighting can be based on average of entire frame (non-CPU lenses use 12mm circle); Spot: Meters 4mm circle (about 1.5% of frame) centered on selected focus point; Highlight-weighted: Available with type G, E, and D lenses; equivalent to center-weighted when non-CPU lens is used
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 2/5/10/20s; 1-9 exposures at intervals of 0.5, 1, 2, or 3 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
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, slow rear-curtain sync, Auto FP High-Speed Sync supported
Flash Guide Number (ISO 100): 13.0 m / 42.7 ft. n/a
Flash Range Description: Depends on lens n/a
Max Flash Sync: 1/180 1/250
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 519 sync terminal with locking thread
Built-In Wireless Flash Control: Full TTL exposure No
Image Storage
Usable Memory Types: SD / SDHC XQD / CFexpress
UHS Support:   No UHS support
Other Memory:    
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.PEF, .DNG) NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed, L/M/S; RAW+JPEG
Movie File Format:   MOV (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No Yes
Built-In GPS: No Yes
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 3.0 Super Speed,Ethernet,Bluetooth
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wired or IR Optional wired, wireless
Connections (extended): DC input, wired remote Type-C Mini HDMI with uncompressed video support, 10-pin Remote Terminal
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): 0.36  
Buffer size for RAW shooting in single shot mode (frames): 11  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 2.8  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 38  
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid): 0.17 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.090 seconds  
Shutter lag (full AF, with flash): 0.24 seconds  
Shutter Lag (prefocused): 0.089 seconds  
Shutter Lag (notes): Live View: Full AF = n/a Prefocused = 0.659s Prefocused with flash = 2.395s  
Startup Time: 0.4 seconds  
Play -> Record Time: 0.5 seconds  
Flash cycle time, full power: 3.1 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 530 shots  
Battery Life, Video:   110 minutes
Battery Form Factor: Proprietary D-LI50 Proprietary EN-EL18c
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI50 Lithium-ion rechargeable 1 x Proprietary EN-EL18c 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 ViewNX-i, ViewNX-Movie Editor, Capture NX-D, Nikon Transfer 2, Picture Control Utility 2 downloads
OS Compatibility: Windows XP/Vista, MacOS 10.2 or later Windows 7/8/10, Mac OS X 10.9.5-10.11.5
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.