• 1/2.3 inch 28.1mm2
  • 16.1 megapixels
  • 25.00mm - 125.00mm (35mm eq.)
  • APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Samsung ST72
  • Pentax K-50
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax K-30
K-30 vs K-50
Successor:   Pentax K-70
K-50 vs K-70
General
Model Number: ST72 K-50
Alternate Model Number(s):    
Camera Format: Ultra Compact SLR
Currently Manufactured: No No
Retail Price: $119.99 $779.95
Street Price: $179.00 $149.00
Date Available: 2013-03-30 2013-07-15
Tripod Mount: Yes Yes
Weight: 3.8 oz (108 g) 31.9 oz (904 g)
includes batteries, kit lens
Size: 3.7 x 2.3 x 0.7 in.
(94 x 58 x 18 mm)
5.1 x 3.8 x 2.8 in.
(130 x 97 x 71 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 16.1 16.3
Sensor Format: 1/2.3 inch APS-C
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 372.09mm2 (23.70mm x 15.70mm)
Approximate Pixel Pitch: 1.34 microns 4.81 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3 3:2
Color Filter Type:   RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:   79
DxO Color Depth Score (bits):   23.7
DxO Dynamic Range Score (evs):   13.0
DxO Maximum Effective ISO Score (iso):   1,120
Image Capture
Image Resolution: 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),
2592 x 1944 (5.0 MP, 4:3),
1984 x 1488 (3.0 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1024 x 768 (0.8 MP, 4:3)
4928 x 3264 (16.1 MP, Other),
4224 x 2816 (11.9 MP, 3:2),
3456 x 2304 (8.0 MP, 3:2),
2688 x 1792 (4.8 MP, 3:2)
Image File Format: JPEG JPEG (EXIF 2.3), 12-bit RAW (.DNG), RAW+JPEG
Continuous-mode frames/second: n/a 6.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (30p/​15p)
640x480 (30p/​15p)
320x240 (30p/​15p)
1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
640x480 (30p/​25p/​24p)
Movie File Format: AVI (Motion JPEG) with monaural sound MOV MPEG-4 AVC (H.264) with monaural audio
Composite Video Out: Yes
NTSC/PAL Switchable Video: n/a Yes
Video Usable as Viewfinder: n/a No
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: n/a Pentax K (KA/KAF/KAF2/3)
Lens: Samsung Zoom smc PENTAX-DA L 18-55mm f/3.5-5.6 AL WR; 11 elements in 8 groups, 6 bladed diaphragm
Focal Length (35mm equivalent): 25 - 125mm 27 - 83mm
Focal Length (actual): 4.5 - 22.5mm 18 - 55mm
Zoom Ratio: 5.00x 3.06x
Aperture Range: f/2.5 (wide) / f/6.3 (tele) - ??? f/3.5 - f/22 (wide) / f/5.6 - f/38 (tele)
Integrated ND Filter: No No
Normal Focus Range: 80 cm to Infinity
31.5 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range: 5 - 80 cm
2.0 - 31.5 in
 
Filter Thread: n/a 52.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes No
Digital Zoom Values: Up to 5x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detection: Multi AF, Centre AF, Face Detection AF, Object Tracking AF, Smart Face Recognition AF Phase Detect:: SAFOX IXi+, 11 point (9 cross type focus point in the center), with light wavelength sensor and diffraction lens; Live View: Contrast detection AF (face detection, tracking, select, spot)
Auto Focus Assist Light? Yes Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: LCD Optical / LCD
Viewfinder Type:   SLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to +1.5 diopter, Natural-Bright-Matte III focusing screen (interchangeable)
Focus Peaking: No Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.61x
Viewfinder Magnification (nominal/claimed):   0.92x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution:   921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:   16.0x
Top Deck Display: No
Exposure
Maximum ISO (native):   51200
Minimum ISO (native):   100
ISO Settings: Auto, 80, 100, 200, 400, 800, 1600, 3200 Auto, 100-51200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: No Yes
White Balance Settings: Auto, Daylight, Cloudy, Fluorescent_H, Fluorescent_L, Tungsten, Custom Auto, Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, CTE, 3 Manual and 3 Kelvin temperature presets
Shutter Speed Range: 1/2000 - 8 sec 1/6000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: Multi, Spot, Centre Weighted, Face Detection AE TTL open-aperture: 77-segment, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: TBA Sensitivity Priority, Shutter and Aperture Priority, Scene (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR (JPG), Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum); Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Color; Dynamic range adjustment (Highlight, Shadow); HDR: Auto, HDR 1, HDR 2, HDR 3
Self Timer: 2, 10, Double seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Auto & Red-eye reduction, Fill-in flash, Slow sync, Flash Off, Red-eye fix P-TTL: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: TBA Depends on lens
Max Flash Sync:   1/180
Flash Exposure Compensation:   -2 to +1 EV in 0.5EV steps
External Flash Connection: n/a Hot Shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: microSD / microSDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes
Uncompressed Format:   12-bit RAW (.DNG), RAW+JPEG
Movie File Format: AVI (Motion JPEG) with monaural sound MOV MPEG-4 AVC (H.264) with monaural audio
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
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
PictBridge Compliant: No No
DPOF Compliant: No Yes
Remote Control: Yes
Remote Control Type:   Optional Wired or IR
Connections (extended):   Wired remote port
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):   6.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   30
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):    
Battery Life, Still (CIPA Rating OVF/EVF):   480 shots
Battery Life, Video:    
Battery Form Factor: Proprietary BP70A Proprietary; optional D-BH109 AA Battery Holder
Usable Battery Types: Lithium-ion rechargeable D-LI109 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable 1 x Proprietary D-LI109 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: iLauncher Software CDROM (SILKYPIX Developer Studio for PENTAX included)
OS Compatibility:    
Miscellaneous
Notes & Features: Vivid Live Panorama Shot, mart Filters and Magic Frame. Available in black, White, Red or Plum. Replaces K-30: tweaked 16MP sensor, tweaked PRIME M processor, maximum ISO now 51,200, controllable Eye-Fi connection, new WR L kit lenses. Available in 120 colors (20 base colors, 6 grip colors).