• APS-C 369.7mm2
  • 12.4 megapixels
  • ISO 200 - 6400
  • APS-C 366.6mm2
  • 16.1 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax K-x
  • Sony Alpha NEX-6
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K2000
K2000 vs K-x
 
Successor: Pentax K-r
K-x vs K-r
Sony A6000
NEX-6 vs A6000
General
Model Number: K-x NEX-6
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $649.95 $999.99
Street Price: $701.76 $549.00
Date Available: 2009-10-15 2012-11-15
Tripod Mount: Yes Yes
Weight: 27.9 oz (791 g)
includes batteries, kit lens
16.5 oz (469 g)
includes batteries, kit lens
Size: 4.8 x 3.6 x 2.7 in.
(122 x 92 x 69 mm)
4.7 x 2.6 x 1.7 in.
(120 x 67 x 43 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony Exmor APS HD
Effective Megapixels: 12.4 16.1
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 5.53 microns 4.78 microns
Focal Length Multiplier: 1.5x 1.5x
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 Yes
DxO Sensor Score: 72 78
DxO Color Depth Score (bits): 22.8 23.7
DxO Dynamic Range Score (evs): 12.5 13.1
DxO Maximum Effective ISO Score (iso): 811 1,018
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)
4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other)
Image File Format: JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) JPEG, RAW (ARW 2.3), RAW+JPEG
Continuous-mode frames/second: 4.3 9.7
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (24)
640x416 (24)
1920x1080 (60p/​28Mbps/​PS or 60i/​24Mbps/​FX or 60i/​17Mbps/​FH or 24p/​24Mbps/​FX or 24p/​17Mbps/​FH)
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
Movie File Format:   AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo
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) Sony E
Lens: smc Pentax DA L 18-55mm f/3.5-5.6 AL Sony SELP1650 PZ 16-50mm f/3.5-5.6 OSS; 9 elements in 8 groups, 4 aspheric surfaces
Focal Length (35mm equivalent): 27 - 84mm 24 - 75mm
Focal Length (actual): 18 - 55mm 16 - 50mm
Zoom Ratio: 3.00x 3.13x
Aperture Range: f/3.5 - 22 (W), f/5.6 - 38 (T) f/3.5 - f/22 (W) / f/5.6 - f/36 (T); 7-blade circular aperture
Integrated ND Filter: No No
Normal Focus Range:   25 cm to Infinity
9.8 in to Infinity
Macro Focus Range:    
Filter Thread: 52.0mm 40.5mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No Yes
Digital Zoom Values: n/a Up to 2x Clear Image zoom; up to 4x Precision zoom; 1.4x / 2x Smart zoom at reduced resolution
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 AF (99-point phase detect; 25-point contrast detect): Multi-point, Center, Flexible Spot; with Face Detection and Predictive Tracking
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter EVF: 1.3cm (0.5-inch) 2,359K-dot XGA OLED, 1.09x magnification (0.71x 35mm eq.), 100% coverage, -4 to +1 diopter, 21mm eyepoint from eyepiece frame at -1 diopter (CIPA standard)
Focus Peaking: No Yes
EVF Resolution: n/a 2,359,000 dots
Viewfinder Magnification (35mm equivalent): 0.57x 0.73x
Viewfinder Magnification (nominal/claimed): 0.85x 1.09x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x 14.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 6400 25600
Minimum ISO (native): 200 100
ISO Settings: Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 Auto (100-3200), 100-25600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Color Temp. (2500-9900K), Color Filter, Custom
Shutter Speed Range: 1/6000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 16-segment Multi, Center-weighted, Spot 1200-zone Multi Segment, Center-weighted, Spot
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 Sweep Panorama, Scene Selection (Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur), Auto Portrait Framing
Self Timer: 2 or 12 seconds 2, 10, 10 with 3/5 shots seconds
Time Lapse (intervalometer):    
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 Flash Off, Autoflash, Fill-flash, Slow sync., Rear-Sync.; Red-eye Reduction On/Off
Flash Guide Number (ISO 100): 11.3 m / 37.1 ft. 6.0 m / 19.7 ft.
Flash Range Description: Depends on lens GN=6(m) at ISO 100; Range is lens aperture dependent
Max Flash Sync: 1/180 1/160
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Multi-Interface (Mi) Shoe
Built-In Wireless Flash Control: Full TTL exposure  
Image Storage
Usable Memory Types: SD / SDHC MS PRO Duo / SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) RAW (ARW 2.3), RAW+JPEG
Movie File Format:   AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo
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 2.0 High Speed,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR Optional RMT-DSLR2 IR Wireless
Connections (extended): AC adapter available Mini HDMI (Type C), Multi-Interface (Mi) Shoe
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.39 0.61
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.43 0.66
Buffer size for RAW shooting in single shot mode (frames): 10 13
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.64
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 4.3 9.7
Buffer size for JPEG shooting in burst mode (frames, max resolution): 25 12
RAW shooting speed in burst mode (fps):   9.8
Buffer size for RAW shooting in burst mode (frames):   10
RAW+JPEG shooting speed in burst mode (fps):   9.8
Buffer Size for RAW+JPEG shooting in burst mode (frames):   9
Shutter lag (full AF, wide/mid): 0.10 seconds 0.26 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.082 seconds 0.126 seconds
Shutter lag (full AF, with flash): 0.23 seconds 0.38 seconds
Shutter Lag (prefocused): 0.082 seconds 0.023 seconds
Shutter Lag (notes): Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s Full Autofocus, Multi-area AF mode = 0.261s
Startup Time: 0.6 seconds 2.0 seconds
Play -> Record Time: 0.2 seconds 1.1 seconds
Flash cycle time, full power: 3.3 seconds 2.5 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   360 shots
Battery Life, Still (CIPA Rating OVF/EVF): 420 shots (NiMH AA) 270 shots
Battery Life, Video:    
Battery Form Factor: 4 x AA Proprietary InfoLithium NP-FW50
Usable Battery Types: Lithium, Alkaline disposables; NiMH rechargeables Lithium-ion rechargeable
Batteries Included: 4 x AA Alkaline disposables 1 x Proprietary NP-FW50 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included: No
Internal Charging Supported: Yes
Software
Included Software: CD-ROM Image Data Converter Ver. 4, PlayMemories Home
OS Compatibility: Windows XP/Vista/7, MacOS-X 10.3+ Windows XP/Vista/7; Mac OS X 10.5 or later. (PlayMemories Home is Windows only.)
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. New "Fast Hybrid AF", built-in OLED EVF, tilting 921K-dot LCD, built-in Wi-Fi, built-in flash, Multi-Interface Shoe, Full HD movies at up to 60p, 10 fps burst mode.