Pentax K-x vs Samsung WB850F Specifications

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APS-C 369.7mm²
12.4 megapixels
ISO 200 - 6400

Go in depth with our full Pentax K-x Review.
See real-world photos taken with the K-x.

1/2.3 inch 28.1mm²
16.2 megapixels
23.00mm - 483.00mm (35mm eq.)

Go in depth with our full Samsung WB850F Review.

Detailed specifications
Pentax K-x
Samsung WB850F

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
General
Model Number:	K-x	WB850F
Alternate Model Number(s):
Camera Format:	SLR	Compact
Currently Manufactured:	No	No
Retail Price:	$649.95	$379.00
Street Price:	$701.76	$467.49
Date Available:	2009-10-15	2012-04-15
Tripod Mount:	Yes	Yes
Weight:	27.9 oz (791 g) includes batteries, kit lens	8.0 oz (226 g)
Size:	4.8 x 3.6 x 2.7 in. (122 x 92 x 69 mm)	4.3 x 2.4 x 1.0 in. (110 x 62 x 25 mm)
Waterproof:	No	No
Waterproof Depth:	n/a	n/a

Image Sensor
Sensor Type:	CMOS	CMOS
Sensor Manufacturer:
Effective Megapixels:	12.4	16.2
Sensor Format:	APS-C	1/2.3 inch
Sensor size:	369.72mm² (23.7mm x 15.6mm)	28.0735mm² (6.17mm x 4.55mm)
Approximate Pixel Pitch:	5.53 microns	1.34 microns
Focal Length Multiplier:	1.5x	n/a
Aspect Ratio:	3:2	4:3
Color Filter Type:	RGBG	RGBG
Anti Aliasing Filter:	Fixed
Self-Cleaning:	Yes	No
Sensor shift image stabilization:	Yes	No
On-Sensor Phase Detect:	No	No
DxO Sensor Score:	72
DxO Color Depth Score (bits):	22.8
DxO Dynamic Range Score (evs):	12.5
DxO Maximum Effective ISO Score (iso):	811
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)	4608 x 3456 (15.9 MP, 4:3), 4608 x 3072 (14.2 MP, 3:2), 4608 x 2592 (11.9 MP, 16:9), 3648 x 2736 (10.0 MP, 4:3), 2832 x 2832 (8.0 MP, 1:1), 2592 x 1944 (5.0 MP, 4:3), 1984 x 1448 (2.9 MP, Other), 1920 x 1080 (2.1 MP, 16:9), 1024 x 768 (0.8 MP, 4:3)
Image File Format:	JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG)	JPEG (EXIF 2.21)
Continuous-mode frames/second:	4.3	n/a
Video Capture
Can take movies:	Yes	Yes
Movie Resolution:	1280x720 (24) 640x416 (24)	1920x1080 (30p) 1280x720 (30p) 640x480 (30p) 320x240 (30p) 384x288 (240p) 176x128 (480p)
Movie File Format:		MP4 (Video: MPEG4, AVC / H.264, Audio: AAC)
Composite Video Out:	Yes	Yes
NTSC/PAL Switchable Video:	Yes	Yes
Video Usable as Viewfinder:	No
HD Video Out:	No	No
HD Video Connection:

Lens & Optics
Lens Mount:	Pentax K (KA/KAF/KAF2/3)	n/a
Lens:	smc Pentax DA L 18-55mm f/3.5-5.6 AL	Schneider-Kreuznach Varioplan Zoom
Focal Length (35mm equivalent):	27 - 84mm	23 - 483mm
Focal Length (actual):	18 - 55mm	4.1 - 86.1mm
Zoom Ratio:	3.00x	21.00x
Aperture Range:	f/3.5 - 22 (W), f/5.6 - 38 (T)	f/2.8 (wide) / f/5.9 (tele) - ???
Integrated ND Filter:	No	No
Normal Focus Range:		80 cm to Infinity 31.5 in to Infinity
Macro Focus Range:		10 cm to Infinity 3.9 in to Infinity
Filter Thread:	52.0mm	n/a
Thread Type:	n/a	n/a
Optical Image Stabilization:	No	Yes
Digital Zoom:	No	Yes
Digital Zoom Values:	n/a	Up to 4x (1.33x Smart Zoom)
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	Contrast Detection: TTL Auto Focus (Center AF, Multi AF, Tracking AF, Face Detection AF, Face Recognition AF, Selection AF), Manual Focus
Auto Focus Assist Light?	Yes	Yes
Manual Focus:	Yes	Yes
Viewfinder
Viewfinder:	Optical / LCD	OLED
Viewfinder Type:	SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter
Focus Peaking:	No	No
EVF Resolution:	n/a	n/a
Viewfinder Magnification (35mm equivalent):	0.57x
Viewfinder Magnification (nominal/claimed):	0.85x
Display
Eye-level Viewfinder:	Yes	No
Rear Display:	Yes	Yes
Rear Display Size (inches):	2.7	3.0
Rear Display Resolution:	230,000 dots	614,000 dots
Touchscreen:	No	Yes
Articulating Screen:	No	No
Tilt Swivel Screen:	No	No
Selfie Screen:	No	No
Max Playback Zoom:	16.0x	9.4x
Top Deck Display:	No

Exposure
Maximum ISO (native):	6400
Minimum ISO (native):	200
ISO Settings:	Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800	Auto, 100-3200
Auto ISO Mode:	Yes	Yes
White Balance Settings:	Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom	Auto, Daylight, Cloudy, Fluorescent_H, Fluorescent_L, Tungsten, Custom, Kelvin
Shutter Speed Range:	1/6000 - 30 sec	1/2000 - 16 sec
Bulb Mode:	Yes	No
Exposure Compensation:	+/- 2.0EV in 0.3EV steps	+/- 2.0EV in 0.3EV steps
Metering Modes:	16-segment Multi, Center-weighted, Spot	Multi, Spot, Center-weighted, Face Detection AE
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	Scene: Beauty Shot, Night, Landscape, Text, Sunset, Dawn, Backlight, Beach & Snow; MAGIC Plus: Panorama, 3D Photo, Magic Frame, Split Shot, Self Shot, Artistic Brush, HDR, CMM; Panorama: Live Panorama / 3D Panorama / Action Panorama
Self Timer:	2 or 12 seconds	2, 10, Double 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	Auto, Auto & Red-eye reduction, Fill-in flash, Slow sync, Flash Off, Red-eye fix
Flash Guide Number (ISO 100):	11.3 m / 37.1 ft.	n/a
Flash Range Description:	Depends on lens	ISO Auto: Wide: 0.30 m - 4.96 m, Tele: 0.50 m - 2.35 m
Max Flash Sync:	1/180
Flash Exposure Compensation:	-2 to +1 EV in 0.5EV steps
External Flash Connection:	Hot Shoe	n/a
Built-In Wireless Flash Control:	Full TTL exposure
Image Storage
Usable Memory Types:	SD / SDHC	SD / SDHC / SDXC
UHS Support:
Other Memory:
Dual Card Slots:	No	No
RAW Capture Support:	Yes	No
Uncompressed Format:	12-bit RAW (.PEF, .DNG)
Movie File Format:		MP4 (Video: MPEG4, AVC / H.264, Audio: AAC)
Included Memory:	No memory included
Included Memory Type:
Connectivity
Built-In Wi-Fi:	No	Yes
NFC:	No
Bluetooth:	No	No
Built-In GPS:	No	Yes
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
Remote Control Type:	Optional IR
Connections (extended):	AC adapter available	Wi-Fi, GPS with POI

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):	0.43
Buffer size for RAW shooting in single shot mode (frames):	10
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):	4.3
Buffer size for JPEG shooting in burst mode (frames, max resolution):	25
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):	0.10 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
Shutter lag (full AF, with flash):	0.23 seconds
Shutter Lag (prefocused):	0.082 seconds
Shutter Lag (notes):	Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s
Startup Time:	0.6 seconds
Play -> Record Time:	0.2 seconds
Flash cycle time, full power:	3.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):
Battery Life, Still (CIPA Rating OVF/EVF):	420 shots (NiMH AA)
Battery Life, Video:
Battery Form Factor:	4 x AA	Proprietary
Usable Battery Types:	Lithium, Alkaline disposables; NiMH rechargeables	Lithium-ion rechargeable
Batteries Included:	4 x AA Alkaline disposables	1 x Proprietary Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter):	No	Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software:	CD-ROM	Intelli-studio, Creative Movie Maker, Auto Backup, Map download manager (Download from On-line with iLinker)
OS Compatibility:	Windows XP/Vista/7, MacOS-X 10.3+	Windows XP SP2 / Vista / 7
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.	Optical Image Stabilization, BSI CMOS Sensor, 3.0" AMOLED Screen, Full HD Video, GPS with POI, Simultaneous Dual Capture of Video/Stills, Built-in Wi-Fi (Mobile Link, AllShare Play, Microsoft Sky Drive, E-Mail, PC Auto Backup, Remote Viewfinder, Upload to Facebook/YouTube, Picasa), Live Panorama. Available in black.