• APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 51,200
  • 35mm 860.4mm2
  • 16.2 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax K-50
  • Nikon D4S
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax K-30
K-30 vs K-50
Nikon D4
D4 vs D4S
Successor: Pentax K-70
K-50 vs K-70
Nikon D5
D4S vs D5
General
Model Number: K-50 D4S
Alternate Model Number(s):    
Camera Format: SLR Pro SLR
Currently Manufactured: No No
Retail Price: $779.95 $6499.95
Street Price: $149.00 $5,999.00
Date Available: 2013-07-15 2014-03-06
Tripod Mount: Yes Yes
Weight: 31.9 oz (904 g)
includes batteries, kit lens
47.8 oz (1,356 g)
includes batteries
Size: 5.1 x 3.8 x 2.8 in.
(130 x 97 x 71 mm)
6.3 x 6.2 x 3.6 in.
(160 x 157 x 91 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 16.3 16.2
Sensor Format: APS-C 35mm
Sensor size: 372.09mm2 (23.70mm x 15.70mm) 860.4mm2 (36.00mm x 23.90mm)
Approximate Pixel Pitch: 4.81 microns 7.31 microns
Focal Length Multiplier: 1.5x 1.0x
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 No
DxO Sensor Score: 79 89
DxO Color Depth Score (bits): 23.7 24.4
DxO Dynamic Range Score (evs): 13.0 13.3
DxO Maximum Effective ISO Score (iso): 1,120 3,074
Image Capture
Image Resolution: 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)
4928 x 3280 (16.2 MP, 3:2),
3696 x 2456 (9.1 MP, 3:2),
2464 x 1640 (4.0 MP, 3:2),
4096 x 2720 (11.1 MP, Other),
3072 x 2040 (6.3 MP, Other),
2048 x 1360 (2.8 MP, Other),
3200 x 2128 (6.8 MP, 3:2),
2400 x 1592 (3.8 MP, Other),
1600 x 1064 (1.7 MP, 3:2),
4096 x 3280 (13.4 MP, 5:4),
3072 x 2456 (7.5 MP, 5:4),
2048 x 1640 (3.4 MP, 5:4)
Image File Format: JPEG (EXIF 2.3), 12-bit RAW (.DNG), RAW+JPEG JPEG, NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed, small size availble (12-bit uncompressed only); TIFF (RGB)
Continuous-mode frames/second: 6.0 10.6
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
640x480 (30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p)
640x424 (30p/​25p)
Movie File Format: MOV MPEG-4 AVC (H.264) with monaural audio MOV (Video: H.264/MPEG-4 AVC; Audio: Linear PCM)
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) Nikon F
Lens: smc PENTAX-DA L 18-55mm f/3.5-5.6 AL WR; 11 elements in 8 groups, 6 bladed diaphragm n/a
Focal Length (35mm equivalent): 27 - 83mm  
Focal Length (actual): 18 - 55mm  
Zoom Ratio: 3.06x  
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/38 (tele)  
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
 
Macro Focus Range:    
Filter Thread: 52.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No
Digital Zoom Values: n/a  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 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) Nikon Advanced Multi-CAM 3500FX autofocus sensor module with TTL phase detection, fine-tuning, and 51 focus points (including 15 cross-type sensors with f/8 supported by 11 sensors)
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / 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) SLR; eye-level pentaprism, 100% coverage, 0.7x magnification, 18mm eyepoint, -3 to +1 diopter
Focus Peaking: Yes No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.61x 0.70x
Viewfinder Magnification (nominal/claimed): 0.92x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 921,600 dots (307,200 px) 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 46.0x
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 51200 25600
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) Auto, 100 - 25,600, plus down to 50 in Lo-1, up to 409,600 in Hi-4
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, CTE, 3 Manual and 3 Kelvin temperature presets Auto (2 types), incandescent, fluorescent (7 types), direct sunlight, flash, cloudy, shade, preset manual (up to 6 values can be stored, spot white balance measurement available during live view), color temperature (2500 K-10000 K)
Shutter Speed Range: 1/6000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 77-segment, Center-weighted, Spot 91K-pixel 3D Color Matrix Metering III, Center-weighted (75% given to 8, 12, 15 or 20mm circle), Spot (4mm) centered on selected focus area
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: 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 None
Self Timer: 2 or 12 seconds 2/5/10/20s; 1-9 exposures at intervals of 0.5, 1, 2, or 3 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: P-TTL: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync Front curtain sync, slow sync, rear-curtain sync, red-eye reduction, red-eye reduction with slow sync, slow rear-curtain sync, Auto FP High-Speed Sync supported
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. n/a
Flash Range Description: Depends on lens n/a
Max Flash Sync: 1/180 1/250
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Hot Shoe ISO 518 Hot Shoe; safety lock provided; PC Sync terminal
Built-In Wireless Flash Control: Full TTL exposure  
Image Storage
Usable Memory Types: SD / SDHC / SDXC CF1 / XQD
UHS Support:    
Other Memory:   UDMA7 compliant
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.DNG), RAW+JPEG NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed, small size availble (12-bit uncompressed only); TIFF (RGB)
Movie File Format: MOV MPEG-4 AVC (H.264) with monaural audio MOV (Video: H.264/MPEG-4 AVC; Audio: Linear PCM)
Included Memory: No memory included 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 Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 2.0 High Speed,Ethernet
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wired or IR Optional wired, wireless
Connections (extended): Wired remote port Type-C mini HDMI with uncompressed video support, DC Input, 10-pin Expansion Terminal, Audio input (stereo 3.5mm jack with power), Audio output (stereo 3.5mm jack), Peripheral connector for WT-5A/WT-4A
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   <0.3
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.36
Buffer size for RAW shooting in single shot mode (frames):   Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.33
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 6.0 10.6
Buffer size for JPEG shooting in burst mode (frames, max resolution): 30 200
RAW shooting speed in burst mode (fps):   10.8
Buffer size for RAW shooting in burst mode (frames):   78
RAW+JPEG shooting speed in burst mode (fps):   10.8
Buffer Size for RAW+JPEG shooting in burst mode (frames):   43
Shutter lag (full AF, wide/mid):   0.20 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   0.91 seconds
Shutter lag (prefocused, live view - DSLR):   0.239 seconds
Shutter Lag (manual focus):   0.044 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):   0.043 seconds
Shutter Lag (notes):   OVF: Full AF lag, wide-area mode = 0.288s Live View: Full AF lag = 0.914s Prefocused = 0.239s
Startup Time:   0.2 seconds
Play -> Record Time:   0.2 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 480 shots 3020 shots
Battery Life, Video:    
Battery Form Factor: Proprietary; optional D-BH109 AA Battery Holder Proprietary EN-EL18A
Usable Battery Types: D-LI109 Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary EN-EL18A Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Software CDROM (SILKYPIX Developer Studio for PENTAX included) Nikon ViewNX 2 CD-ROM
OS Compatibility:   Windows, Mac OS X
Miscellaneous
Notes & Features: 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). New 16MP sensor with improved high ISO performance, EXPEED 4 processor, 11fps burst mode with AE/AF, improved AF, up to 1920x1080p60 video, new small RAW size option (2464 x 1640, 12-bit), improved battery life, built-in GbE LAN (1000Base-T), uncompressed 1080p60 HDMI output.