• APS-C 368.2mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • 35mm 858.0mm2
  • 24.5 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Pentax K20D
  • Nikon Z6
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K10D
K10D vs K20D
 
Successor: Pentax K-7
K20D vs K-7
 
General
Model Number: K20D Z6
Alternate Model Number(s):   Z 6
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $799.95 $1999.95
Street Price:   $1,395.98
Date Available: 2008-04-30 2018-11-16
Tripod Mount: Yes Yes
Weight: 28.3 oz (802 g)
includes batteries
41.4 oz (1,175 g)
includes batteries, kit lens
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 mm)
5.3 x 4.0 x 2.7 in.
(134 x 101 x 68 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 14.6 24.5
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 5.94 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 Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 65 95
DxO Color Depth Score (bits): 22.9 25.3
DxO Dynamic Range Score (evs): 11.1 14.3
DxO Maximum Effective ISO Score (iso): 639 3,299
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)
6048 x 4024 (24.3 MP, 3:2),
4528 x 3016 (13.7 MP, 3:2),
3024 x 2016 (6.1 MP, 3:2),
4016 x 4016 (16.1 MP, 1:1),
3008 x 3008 (9.0 MP, 1:1),
2000 x 2000 (4.0 MP, 1:1),
6048 x 3400 (20.6 MP, 16:9),
4528 x 2544 (11.5 MP, 16:9),
3024 x 1696 (5.1 MP, 16:9),
3840 x 2160 (8.3 MP, 16:9),
1920 x 1080 (2.1 MP, 16:9),
4128 x 2320 (9.6 MP, 16:9),
3840 x 2160 (8.3 MP, 16:9),
1920 x 1080 (2.1 MP, 16:9),
3936 x 2624 (10.3 MP, 3:2),
2944 x 1968 (5.8 MP, 3:2),
1968 x 1312 (2.6 MP, 3:2)
Image File Format: JPEG (EXIF 2.21), RAW (.PEF, .DNG) JPEG (EXIF 2.31), NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; large, medium, and small available (medium and small images are recorded at a bit depth of 12 bits using lossless compression); TIFF
Continuous-mode frames/second: 2.8 12.0
Video Capture
Can take movies: No Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1920x1080 (120p/​100p)
Movie File Format:   MOV/MP4 (H.265/MPEG-4 AVC, Linear PCM/AAC 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 Z
Lens: n/a Nikkor Z 24-70mm f/4 S
Focal Length (35mm equivalent):   24 - 70mm
Focal Length (actual):   24 - 70mm
Zoom Ratio:   2.92x
Aperture Range:   f/4 - f/22; 7-blade rounded diaphragm
Integrated ND Filter: No
Normal Focus Range:   30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 72.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No Yes
Digital Zoom Values: n/a 1.5x (DX), 5:4, 1:1, 16:9 crop modes
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 11-point TTL phase-matching (SAFOX VIII) Hybrid phase-detection/contrast AF; 273 (single-point AF); Pinpoint, single-point and dynamic-area AF (pinpoint and dynamic-area AF available in photo mode only); wide-area AF (S); wide-area AF (L); auto-area AF; Autofocus (AF): Single-servo AF (AF-S); continuous-servo AF (AF-C); full-time AF (AF-F; available only in movie mode); predictive focus tracking; Manual focus (M): Electronic rangefinder can be used; Touch AF and Touch Shutter supported.
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; eye-level pentaprism, coverage: 95%, magnification: 0.95x, diopter: -2.5 to 1.5 EVF: 1.27-cm/0.5-in., approx. 3690k-dot (Quad VGA) OLED with color balance and auto and 11-level manual brightness controls, 100% coverage, 0.8x magnification, 21mm eyepoint, -4 to +2 diopter, eye sensor
Focus Peaking: No Yes
EVF Resolution: n/a 3,686,400 dots (1,228,800 pixels)
Viewfinder Magnification (35mm equivalent): 0.63x 0.80x
Viewfinder Magnification (nominal/claimed): 0.95x 0.80x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 230,000 dots 2,100,000 dots
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 32.0x 24.0x
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 3200 51200
Minimum ISO (native): 100 100
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) Auto, 100 - 51,200 in 1/3, 1/2 or 1EV steps, plus down to 50 in Lo-1 and up to 204,800 in Hi-2
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature Auto (3), Natural Light Auto, Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual (6), Color Temperature (2,500K-10,000K); Fine-tuning available.
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 Matrix, Center-weighted (weight of 75% given to 12-mm circle in center of frame; weighting can be based on average of entire frame), Spot (4mm circle or about 1.5% frame, centered on selected focus point), Highlight-weighted
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 3 User Settings (U1, U2, U3); HDR, Multiple Exposure (Add, average, lighten, darken)
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 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, off
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 1/200
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 hotshoe
Built-In Wireless Flash Control: Full TTL exposure No
Image Storage
Usable Memory Types: SD / SDHC XQD
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.PEF, .DNG) NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; large, medium, and small available (medium and small images are recorded at a bit depth of 12 bits using lossless compression); TIFF
Movie File Format:   MOV/MP4 (H.265/MPEG-4 AVC, Linear PCM/AAC audio)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
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,Bluetooth,WiFi
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wired or IR Wi-Fi, Bluetooth or optional wired or wireless
Connections (extended): DC input, wired remote Mini (Type C) HDMI, USB 3.1 Gen 1 Type C (SuperSpeed USB), 10-pin Expansion Terminal, Stereo Mic Jack (3.5mm, plug-in power provided), Stereo Audio Out (3.5mm)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.39 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):   0.42
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 2.8 12.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 38 47
RAW shooting speed in burst mode (fps):   12.0
Buffer size for RAW shooting in burst mode (frames):   35
RAW+JPEG shooting speed in burst mode (fps):   12.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   29
Shutter lag (full AF, wide/mid): 0.17 seconds 0.21 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 0.058 seconds
Shutter lag (full AF, with flash): 0.24 seconds  
Shutter Lag (prefocused): 0.089 seconds 0.056 seconds
Shutter Lag (notes): Live View: Full AF = n/a Prefocused = 0.659s Prefocused with flash = 2.395s Shutter lag results are with Electronic First Curtain Shutter (EFCS) enabled.
Startup Time: 0.4 seconds 1.5 seconds
Play -> Record Time: 0.5 seconds 0.7 seconds
Flash cycle time, full power: 3.1 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   380 shots
Battery Life, Still (CIPA Rating OVF/EVF): 530 shots 310 shots
Battery Life, Video:   85 minutes
Battery Form Factor: Proprietary D-LI50 Proprietary
Usable Battery Types: Lithium-ion rechargeable EN-EL15b/EN-EL15a/EN-EL15 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI50 Lithium-ion rechargeable 1 x Proprietary EN-EL15b Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No Yes
Software
Included Software: CD-ROM S-SW74/75  
OS Compatibility: Windows XP/Vista, MacOS 10.2 or later  
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.