• 1/2.3 inch 28.1mm2
  • 12.2 megapixels
  • 28.00mm - 504.00mm (35mm eq.)
  • APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Fujifilm FinePix S1800
  • 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: S1800 K-50
Alternate Model Number(s):    
Camera Format: EVF SLR
Currently Manufactured: No No
Retail Price: $229.95 $779.95
Street Price: $207.09 $149.00
Date Available: 2010-02-15 2013-07-15
Tripod Mount: Yes Yes
Weight: 15.2 oz (432 g)
includes batteries
31.9 oz (904 g)
includes batteries, kit lens
Size: 4.3 x 2.9 x 3.2 in.
(110 x 73 x 81 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: 12.2 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: 1.54 microns 4.81 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3, 16:9 3:2
Color Filter Type:   RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: Yes 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: 4000 x 3000 (12.0 MP, 4:3),
4000 x 2664 (10.7 MP, 3:2),
4000 x 2248 (9.0 MP, 16:9),
2816 x 2112 (5.9 MP, 4:3),
2816 x 1864 (5.2 MP, Other),
2816 x 1584 (4.5 MP, 16:9),
2048 x 1536 (3.1 MP, 4:3),
2048 x 1360 (2.8 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
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 (Exif v2.2) JPEG (EXIF 2.3), 12-bit RAW (.DNG), RAW+JPEG
Continuous-mode frames/second: 1.3 6.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (30)
640x480 (30)
320x240 (30)
1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
640x480 (30p/​25p/​24p)
Movie File Format: AVI (Motion JPEG) MOV MPEG-4 AVC (H.264) with monaural audio
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: n/a Pentax K (KA/KAF/KAF2/3)
Lens: Fujinon 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): 28 - 504mm 27 - 83mm
Focal Length (actual): 5 - 90mm 18 - 55mm
Zoom Ratio: 18.00x 3.06x
Aperture Range: F3.1 / F6.4 (wide); F5.6 / F11 (tele), with ND filter f/3.5 - f/22 (wide) / f/5.6 - f/38 (tele)
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range: 2 - 100 cm
0.8 - 39.4 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 6.3x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF: Center, Multi, Area, Tracking; Single AF, Continuous 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: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF; 0.2-inch, 200K dot color LCD; Approx. 99% coverage 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
Viewfinder Magnification (35mm equivalent):   0.61x
Viewfinder Magnification (nominal/claimed):   0.92x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 230,000 dots 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, 64, 100, 200, 400, 800, 1600, 3200*, 6400* (3mpix or below) Auto, 100-51200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm white), Fluorescent light (Cool white), Incandescent light, 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: 256-zone Multi, Average, Spot TTL open-aperture: 77-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: Portrait, Landscape, Sport, Night, Night(Tripod), Fireworks, Sunset, Snow, Natural Light, Natural Light & with Flash, Beach, Party, Flower, Text, Smile, Zoom Bracketing, Panorama 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 or 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Forced, Suppressed, Slow Synchro, Red-eye Reduction Auto, Red-eye Reduction Forced, Red-eye Reduction & Slow Synchro 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: ISO Auto: Wide: approx. 40 cm–8 m/1.3 ft.–26.2 ft., Tele: approx. 2.5 m–4.4 m/8.2 ft.–14.4 ft.; Macro: Wide: approx. 30 cm–3 m/1 ft.–9.8 ft., Tele: approx.1.8 m–3 m/1 ft.–5.9 ft. 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: SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   12-bit RAW (.DNG), RAW+JPEG
Movie File Format: AVI (Motion JPEG) MOV MPEG-4 AVC (H.264) with monaural audio
Included Memory: 23.0 MB No memory included
Included Memory Type: Internal  
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: Yes 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): 2.80  
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? Yes
JPEG shooting speed in burst mode (fps, max resolution): 1.3 6.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 3 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): 0.64 seconds  
Shutter lag (full AF, tele): 0.77 seconds  
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): 0.122 seconds  
Shutter Lag (notes):    
Startup Time: 4.1 seconds  
Play -> Record Time:    
Flash cycle time, full power: 11.0 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 500 shots (NiMH AA)  
Battery Life, Still (CIPA Rating OVF/EVF):   480 shots
Battery Life, Video:    
Battery Form Factor: 4 x AA Proprietary; optional D-BH109 AA Battery Holder
Usable Battery Types: Alkaline or Lithium disposable, NiMH rechargeable D-LI109 Lithium-ion rechargeable
Batteries Included: 4 x AA Alkaline disposable 1 x Proprietary D-LI109 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software:   Software CDROM (SILKYPIX Developer Studio for PENTAX included)
OS Compatibility:    
Miscellaneous
Notes & Features: Dual Image Stabilization (CCD-shift, High ISO), 720p HD Movies. 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).