• 1/2.35 inch 27.3mm2
  • 8.0 megapixels
  • 36.00mm - 180.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.2 megapixels
  • 23.00mm - 483.00mm (35mm eq.)
  • Detailed specifications
  • Pentax Optio M50
  • Samsung WB850F
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: M50 WB850F
Alternate Model Number(s):    
Camera Format: Ultra Compact Compact
Currently Manufactured: No No
Retail Price: $229.95 $379.00
Street Price: $139.95 $467.49
Date Available: 2008-03-30 2012-04-15
Tripod Mount: Yes Yes
Weight: 4.1 oz (116 g) 8.0 oz (226 g)
Size: 3.7 x 2.2 x 0.9 in.
(94 x 56 x 23 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: CCD CMOS
Sensor Manufacturer:    
Effective Megapixels: 8.0 16.2
Sensor Format: 1/2.35 inch 1/2.3 inch
Sensor size: 27.2556mm2 (6.03mm x 4.52mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 1.85 microns 1.34 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3 4:3
Color Filter Type:   RGBG
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 3264 x 2448 (8.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2304 x 1728 (4.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		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 2.2) JPEG (EXIF 2.21)
Continuous-mode frames/second: n/a n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30/​15)
320x240 (30/​15) 		1920x1080 (30p)
1280x720 (30p)
640x480 (30p)
320x240 (30p)
384x288 (240p)
176x128 (480p)
Movie File Format: AVI (MotionJPEG) MP4 (Video: MPEG4, AVC / H.264, Audio: AAC)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: n/a n/a
Lens: Pentax zoom lens, 8 elements, 6 groups (4 aspherical elements) Schneider-Kreuznach Varioplan Zoom
Focal Length (35mm equivalent): 36 - 180mm 23 - 483mm
Focal Length (actual): 6.3 - 31.5mm 4.1 - 86.1mm
Zoom Ratio: 5.00x 21.00x
Aperture Range: f/3.5 (wide) / f/5.6 (tele) - ??? f/2.8 (wide) / f/5.9 (tele) - ???
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity 		80 cm to Infinity
31.5 in to Infinity
Macro Focus Range: 10 - 100 cm
3.9 - 39.4 in 		10 cm to Infinity
3.9 in to Infinity
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 5.1x Up to 4x (1.33x Smart Zoom)
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL contrast detection 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? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: LCD OLED
Viewfinder Type:    
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No No
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 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: 8.0x 9.4x
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto (64 - 3200); 6400 only available in Digital SR mode Auto, 100-3200
Auto ISO Mode: No Yes
White Balance Settings: Auto, daylight, shade, tungsten, fluorescent, custom Auto, Daylight, Cloudy, Fluorescent_H, Fluorescent_L, Tungsten, Custom, Kelvin
Shutter Speed Range: 1/2000 - 4 sec 1/2000 - 16 sec
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: TTL multi-segment, Center-weighted, Spot Multi, Spot, Center-weighted, Face Detection AE
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Night Scene, Landscape, Flower, Natural Skin Tone, Portrait, Surf & Snow, Sport, Digital SR (5M), Kids, Pet, Food, Panorama, Digital Wide Angle (5M) 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 10 seconds 2, 10, Double seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto flash, flash on, flash off, red-eye reduction Auto, Auto & Red-eye reduction, Fill-in flash, Slow sync, Flash Off, Red-eye fix
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: 14’ (wide, auto ISO), 9.2’ (tele, auto ISO) ISO Auto: Wide: 0.30 m - 4.96 m, Tele: 0.50 m - 2.35 m
Max Flash Sync:    
Flash Exposure Compensation:    
External Flash Connection: n/a n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (MotionJPEG) MP4 (Video: MPEG4, AVC / H.264, Audio: AAC)
Included Memory: 51.1 MB  
Included Memory Type: Internal  
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: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: No
Remote Control Type:    
Connections (extended): DC Input Wi-Fi, GPS with POI
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press?
JPEG shooting speed in burst mode (fps, max resolution):    
Buffer size for JPEG shooting in burst mode (frames, max resolution):    
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):    
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 210 shots  
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI78 Proprietary
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI78 Lithium-ion rechargeable 1 x Proprietary Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: TBA Intelli-studio, Creative Movie Maker, Auto Backup, Map download manager (Download from On-line with iLinker)
OS Compatibility: TBA Windows XP SP2 / Vista / 7
Miscellaneous
Notes & Features: 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.