• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • APS-C 369.0mm2
  • 28.2 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax K-3
  • Samsung NX1
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor: Pentax K-3 II
K-3 vs K-3 II 		 
General
Model Number: K-3 NX1
Alternate Model Number(s):    
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $1149.95 $2799.99
Street Price: $699.00 $1,797.00
Date Available: 2013-11-01 2014-11-28
Tripod Mount: Yes Yes
Weight: 43.7 oz (1,240 g)
includes batteries, kit lens 		45.5 oz (1,290 g)
includes batteries, kit lens
Size: 5.2 x 3.9 x 3.1 in.
(132 x 100 x 77 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:   Samsung
Effective Megapixels: 24.4 28.2
Sensor Format: APS-C APS-C
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 368.95mm2 (23.50mm x 15.70mm)
Approximate Pixel Pitch: 3.91 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: Optional None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 80 83
DxO Color Depth Score (bits): 23.7 24.2
DxO Dynamic Range Score (evs): 13.4 13.2
DxO Maximum Effective ISO Score (iso): 1,216 1,363
Image Capture
Image Resolution: 6016 x 4000 (24.1 MP, 3:2),
4608 x 3072 (14.2 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 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 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG JPEG, MPO, RAW (.SRW), RAW+JPEG
Continuous-mode frames/second: 7.1 15.2
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​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: MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record MP4 (Video: HEVC (H.265) / Sound: AAC)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2/3) Samsung NX
Lens: smc Pentax 18-135mm f/3.5-5.6 ED AL [IF] DC DA WR Samsung 16-50mm f/2-2.8 S ED OIS NX
Focal Length (35mm equivalent): 27 - 203mm 25 - 77mm
Focal Length (actual): 18 - 135mm 16 - 50mm
Zoom Ratio: 7.50x 3.13x
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele) f/2.0 - 22 (W), f/2.8 - 22 (T); 9-blade (rounded) aperture
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity 		30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:    
Filter Thread: 62.0mm 72.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes
Digital Zoom Values:   Up to 2x Intelli-Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: SAFOX 11 TTL phase-matching - 27 point (25 cross type focus points in the center) 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, 0.95x mag., TBDmm eyepoint, -2.5 to +1.5 diopter 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): 0.63x 0.69x
Viewfinder Magnification (nominal/claimed): 0.95x 1.04x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.2 3.0
Rear Display Resolution: 1,036,800 dots (345,600 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: Yes 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, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings) 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: 1/8000 - 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: Multi-segment with 86K-pixel RGB sensor, 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; Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3. 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, Red-eye reduction, Slow-speed sync, Rear Curtain Sync. High-Speed Sync and Wireless Sync also available with PENTAX dedicated external flash. Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off
Flash Guide Number (ISO 100): 13.0 m / 42.7 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, PC Sync socket 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-I UHS-II
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (.PEF, .DNG), RAW+JPEG RAW (.SRW), RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record 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: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 3.0 Super 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): Micro (Type D) HMDI, USB 3.0 Micro B, DC input, wired remote jack, 3.5mm external stereo mic jack, 3.5mm stereo headphone jack 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): 0.79 0.41
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.64  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.69 0.42
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 7.1 15.2
Buffer size for JPEG shooting in burst mode (frames, max resolution): 75 53
RAW shooting speed in burst mode (fps): 7.1 15.1
Buffer size for RAW shooting in burst mode (frames): 24 22
RAW+JPEG shooting speed in burst mode (fps): 7.1 15.2
Buffer Size for RAW+JPEG shooting in burst mode (frames): 25 20
Shutter lag (full AF, wide/mid): 0.14 seconds 0.20 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 1.01 seconds  
Shutter lag (prefocused, live view - DSLR): 0.226 seconds  
Shutter Lag (manual focus): 0.097 seconds 0.079 seconds
Shutter lag (full AF, with flash): 0.33 seconds 0.29 seconds
Shutter Lag (prefocused): 0.096 seconds 0.055 seconds
Shutter Lag (notes): Full AF lag, Wide-area mode, OVF = 0.157s Live View: Center mode AF lag = 1.014s Wide-area mode AF lag = 1.005s Prefocused = 0.226s Full AF lag, Single-area AF mode, EFC shutter enabled = 0.202s
Startup Time: 0.9 seconds 0.7 seconds
Play -> Record Time: 0.6 seconds 0.7 seconds
Flash cycle time, full power: 2.3 seconds 3.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   500 shots
Battery Life, Still (CIPA Rating OVF/EVF): 560 shots 500 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI90 Proprietary BP-1900
Usable Battery Types: Lithium-ion rechargeable 1410mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 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 Yes
Internal Charging Supported: No Yes
Software
Included Software: Software CD-ROM S-SW140 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: Image stabilization system also acts as a selectable AA filter, 8.3 fps full-res burst mode, new 27-point AF system, new 86,000 pixel RGB metering system, Full HD video up to 60i with H.264 encoding, dual SD card slots, freeze-proof, dust-proof, weather-resistant magnesium alloy construction, USB 3.0 port. 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.