• APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 51,200
  • APS-C 369.0mm2
  • 28.2 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax K-50
  • Samsung NX1
Links
Prices: Compare 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: K-50 NX1
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $779.95 $2799.99
Street Price: $149.00 $1,797.00
Date Available: 2013-07-15 2014-11-28
Tripod Mount: Yes Yes
Weight: 31.9 oz (904 g)
includes batteries, kit lens
45.5 oz (1,290 g)
includes batteries, kit lens
Size: 5.1 x 3.8 x 2.8 in.
(130 x 97 x 71 mm)
5.5 x 4.0 x 2.6 in.
(139 x 102 x 66 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Samsung
Effective Megapixels: 16.3 28.2
Sensor Format: APS-C APS-C
Sensor size: 372.09mm2 (23.70mm x 15.70mm) 368.95mm2 (23.50mm x 15.70mm)
Approximate Pixel Pitch: 4.81 microns 3.63 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 79 83
DxO Color Depth Score (bits): 23.7 24.2
DxO Dynamic Range Score (evs): 13.0 13.2
DxO Maximum Effective ISO Score (iso): 1,120 1,363
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)
6480 x 4320 (28.0 MP, 3:2),
4560 x 3040 (13.9 MP, 3:2),
3264 x 2176 (7.1 MP, 3:2),
2112 x 1408 (3.0 MP, 3:2),
6480 x 3648 (23.6 MP, 16:9),
4608 x 2592 (11.9 MP, 16:9),
3328 x 1872 (6.2 MP, 16:9),
2048 x 1152 (2.4 MP, 16:9),
4320 x 4320 (18.7 MP, 1:1),
3088 x 3088 (9.5 MP, 1:1),
2160 x 2160 (4.7 MP, 1:1),
1408 x 1408 (2.0 MP, 1:1)
Image File Format: JPEG (EXIF 2.3), 12-bit RAW (.DNG), RAW+JPEG JPEG, MPO, RAW (.SRW), RAW+JPEG
Continuous-mode frames/second: 6.0 15.2
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
640x480 (30p/​25p/​24p)
4096x2160 (24p)
3840x2160 (30p/​24p)
1920x1080 (60p/​30p/​24p)
1280x720 (60p/​30p)
640x480 (60p/​30p)
1920x1080 (120p)
1280x720 (120p)
640x480 (120p)
Movie File Format: MOV MPEG-4 AVC (H.264) with monaural audio MP4 (Video: HEVC (H.265) / Sound: AAC)
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) Samsung NX
Lens: smc PENTAX-DA L 18-55mm f/3.5-5.6 AL WR; 11 elements in 8 groups, 6 bladed diaphragm Samsung 16-50mm f/2-2.8 S ED OIS NX
Focal Length (35mm equivalent): 27 - 83mm 25 - 77mm
Focal Length (actual): 18 - 55mm 16 - 50mm
Zoom Ratio: 3.06x 3.13x
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/38 (tele) f/2.0 - 22 (W), f/2.8 - 22 (T); 9-blade (rounded) aperture
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:    
Filter Thread: 52.0mm 72.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No Yes
Digital Zoom Values: n/a Up to 2x Intelli-Zoom
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) Hybrid contrast/phase-detect AF: 205-point PDAF (153 cross-point type) + 209-point CDAF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / OLED
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) OLED EVF with eye sensor; XGA (1024x768) 2,359K dots; 100% Field of view; 1.04x Magnification (50mm eq. lens); 21.0mm eyepoint; -4 to +2 diopter
Focus Peaking: Yes Yes
EVF Resolution: n/a 2,359,296 dots (786,432 pixels)
Viewfinder Magnification (35mm equivalent): 0.61x 0.69x
Viewfinder Magnification (nominal/claimed): 0.92x 1.04x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots (307,200 px) 1,036,800 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x  
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 - 25600 (1 or 1/3EV steps); 51200 (extended)
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, Daylight, Cloudy, Fluorescent (W, N, D), Tungsten, Auto+Tungsten, Flash, Custom, K (Manual); Micro Adjustment each 7 steps in Amber/Blue and Green/Magenta axes
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 Multi (221 segments), Center-weighted, Spot
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 Action Freeze, Beauty Face, Fireworks, Landscape, Light Trace, Multi-Exposure, Night, Panorama (Live), Rich Tone (HDR), Samsung Auto Shutter, Silhouette, Sunset, Waterfall; Smart Range+, HDR (Auto)
Self Timer: 2 or 12 seconds 2-30 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: P-TTL: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 11.0 m / 36.1 ft.
Flash Range Description: Depends on lens Lens dependent; GN=11 (ISO 100, m)
Max Flash Sync: 1/180 1/250
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 3.0 EV in 0.5EV steps
External Flash Connection: Hot Shoe Hot shoe
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:   UHS-II
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.DNG), RAW+JPEG RAW (.SRW), RAW+JPEG
Movie File Format: MOV MPEG-4 AVC (H.264) with monaural audio MP4 (Video: HEVC (H.265) / Sound: AAC)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No Yes
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,USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes No
Remote Control: Yes Yes
Remote Control Type: Optional Wired or IR Wi-Fi live view; optional wired
Connections (extended): Wired remote port Wi-Fi (IEEE 802.11b/g/n/ac) with NFC; Bluetooth; Expansion port for grip; Mult-function USB port compatible with wired remote
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.41
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):   0.42
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 6.0 15.2
Buffer size for JPEG shooting in burst mode (frames, max resolution): 30 53
RAW shooting speed in burst mode (fps):   15.1
Buffer size for RAW shooting in burst mode (frames):   22
RAW+JPEG shooting speed in burst mode (fps):   15.2
Buffer Size for RAW+JPEG shooting in burst mode (frames):   20
Shutter lag (full AF, wide/mid):   0.20 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.079 seconds
Shutter lag (full AF, with flash):   0.29 seconds
Shutter Lag (prefocused):   0.055 seconds
Shutter Lag (notes):   Full AF lag, Single-area AF mode, EFC shutter enabled = 0.202s
Startup Time:   0.7 seconds
Play -> Record Time:   0.7 seconds
Flash cycle time, full power:   3.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   500 shots
Battery Life, Still (CIPA Rating OVF/EVF): 480 shots 500 shots
Battery Life, Video:    
Battery Form Factor: Proprietary; optional D-BH109 AA Battery Holder Proprietary BP-1900
Usable Battery Types: D-LI109 Lithium-ion rechargeable 1410mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 2 x Proprietary BP-1900 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: Yes
Software
Included Software: Software CDROM (SILKYPIX Developer Studio for PENTAX included) i-Launcher (web version), Power Media Player, Samsung Movie Converter, Samsung Raw Converter, Samsung DNG Converter, Adobe Photoshop Lightroom 5
OS Compatibility:    
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). Available body-only, bundled with 16-50 f/3.5-5.6 PZ OIS lens, or bundled with 16-50mm f/2-2.8 S OIS lens with battery grip, dedicated battery charger and second battery.