• APS-C 369.7mm2
  • 16.3 megapixels
  • ISO 100 - 12,800
  • APS-C 366.6mm2
  • 26.1 megapixels
  • ISO 160 - 12,800
  • Detailed specifications
  • Pentax K-01
  • Fujifilm X-T4
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Fujifilm X-T3
X-T3 vs X-T4
Successor:   Fujifilm X-T5
X-T4 vs X-T5
General
Model Number: K-01 X-T4
Alternate Model Number(s):    
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: No Yes
Retail Price: $899.95 $1699.95
Street Price: $358.95 $1,599.00
Date Available: 2012-03-15 TBD
Tripod Mount: Yes Yes
Weight: 21.6 oz (611 g)
includes batteries, kit lens
21.4 oz (607 g)
includes batteries
Size: 4.8 x 3.1 x 2.3 in.
(122 x 79 x 58 mm)
5.3 x 3.7 x 2.5 in.
(135 x 93 x 64 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 16.3 26.1
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.81 microns 3.77 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG X-Trans 4
Anti Aliasing Filter: Fixed Not needed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 79  
DxO Color Depth Score (bits): 23.7  
DxO Dynamic Range Score (evs): 12.9  
DxO Maximum Effective ISO Score (iso): 1,135  
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),
4352 x 3264 (14.2 MP, 4:3),
3840 x 2880 (11.1 MP, 4:3),
3072 x 2304 (7.1 MP, 4:3),
2304 x 1728 (4.0 MP, 4:3),
4928 x 2776 (13.7 MP, 16:9),
4224 x 2376 (10.0 MP, 16:9),
3456 x 1944 (6.7 MP, 16:9),
2688 x 1512 (4.1 MP, 16:9),
3264 x 3264 (10.7 MP, 1:1),
2880 x 2880 (8.3 MP, 1:1),
2304 x 2304 (5.3 MP, 1:1),
1728 x 1728 (3.0 MP, 1:1)
6240 x 4160 (26.0 MP, 3:2),
6240 x 3512 (21.9 MP, 16:9),
4160 x 4160 (17.3 MP, 1:1),
4416 x 2944 (13.0 MP, 3:2),
4416 x 2488 (11.0 MP, Other),
2944 x 2944 (8.7 MP, 1:1),
3120 x 2080 (6.5 MP, 3:2),
3120 x 1760 (5.5 MP, Other),
2080 x 2080 (4.3 MP, 1:1)
Image File Format: JPEG, 12-bit DNG RAW JPEG (v2.3); Compressed RAW, .RAF 14-bit RAW, uncompressed or lossless compression; RAW + JPEG; TIFF (8/16-bit)
Continuous-mode frames/second: 5.9 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
640x480 (30p/​25p/​24p)
4096x2160 (60p/​50p/​30p/​25p/​24p/​23.98p)
3840x2160 (60p/​50p/​30p/​25p/​24p/​23.98p)
2048x1080 (60p/​50p/​30p/​25p/​24p/​23.98p)
1920x1080 (60p/​50p/​30p/​25p/​24p/​23.98p)
1920x1080 (120p/​100p)
Movie File Format: MP4 (AVC H.264), AVI/MJPEG for Interval Movie MOV (MPEG-4 AVC/H.264, HEVC/H.265, Audio: Linear PCM / Stereo sound 24bit / 48KHz sampling); MP4 (MPEG-4 AVC/H.264, Audio: AAC)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2/3) Fujifilm X
Lens: smc PENTAX-DA 40mm F2.8 XS, 5 elements in 4 groups Fujinon XF 18-55mm f/2.8-4 R LM OIS; 14 elements in 10 groups, including 3 aspherical lenses and 1 extra low dispersion element
Focal Length (35mm equivalent): 61mm 27 - 84mm
Focal Length (actual): 40mm 18 - 55mm
Zoom Ratio: 1.00x 3.06x
Aperture Range: f/2.8 (wide) / f/22 (tele) f/2.8 (wide) / f/4 (tele) - f/22; 7 diaphragm blades
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: 27.0mm 58.0mm
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: Contrast Detection: Auto 81 Point, User-Selectable, Center; AF Single (w focus lock, focus/release priority selectable), Face Detection AF, Tracking AF, Manual Hybrid Phase/Contrast Detect AF: 425 selectable focus points, 2.16 million phase-detect pixels; Single point AF: EVF / LCD: 13x9 / 25x17 (changeable size of AF frame among 5 types), Zone AF: 3x3 / 5x5 / 7x7 from 91 areas on 13x9 grid, Wide/Tracking AF: Up to 18 area
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: No / LCD EVF / LCD
Viewfinder Type:   EVF: 0.5-inch 3.69M-dot OLED with 100% coverage, 0.75x magnification (35mm format equivalent), 23mm eyepoint (from the rear end of the camera's eyepiece), -4 to +2 diopter adjustment, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: n/a 3,690,000 dots (1,230,000 pixels)
Viewfinder Magnification (35mm equivalent):   0.75x
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,000 dots 1,620,000 dots (540,000 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800 12800
Minimum ISO (native): 100 160
ISO Settings: Auto: ISO 100-12800 (1, 1/2, 1/3 steps), expandable to ISO 100-25600, Auto ISO range selectable; Manual: ISO 100-12800 (1, 1/2, 1/3 steps), expandable to ISO 100-25600 AUTO (3) with selectable limits, ISO 160-12800, Extended output sensitivity equivalent to ISO 80, 100, 125, 25600 and 51200
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, CTE Auto (WHITE PRIORITY, AUTO, AMBIENCE PRIORITY), Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Underwater, Custom (3), Color Temperature (2,500-10,000K)
Shutter Speed Range: 1/4000 - 30 sec 1/32000 - 900 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1024-segment Multi, Center-weighted and Spot TTL 256-zones metering; Multi, Spot, Average, Center-weighted
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Scene modes: Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR (JPG only), Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum; Custom Image modes: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome (including film filters, infrared, sepia toning), Cross Processing; Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color... Film Simulation: PROVIA/Standard, Velvia/Vivid, ASTIA/Soft, Classic Chrome, PRO Neg.Hi, PRO Neg.Std, Black&White, Black&White+Ye Filter, Black&White+R Filter, Black&White+G Filter, Sepia, ACROS, ACROS+Ye Filter, ACROS+R Filter, ACROS+G Filter, ETERNA/Cinema, ETERNA/Bleach Bypass; Advanced Filter: Toy camera, Miniature, Pop color, High-key, Low-key, Dynamic tone, Soft focus, Partial color (Red, Orange, Yellow, Green, Blue, Purple); Dynamic Range Setting: AUTO (100-400%), 100%, 200%, 400%; Dynamic Range Priority: Off, Auto, Weak, Strong; Panorama
Self Timer: 2, 12 seconds 2 or 10 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Auto + Redeye, On, On + Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Off Red-eye removal OFF: Auto, Forced Flash, Suppressed Flash, Slow Synchro, Rear-curtain Synchro. Red-eye removal ON: Red-eye Reduction Auto, Red-eye Reduction & Forced Flash, Suppressed Flash, Red-eye Reduction & Slow Synchro, Red-eye Reduction & Rear-curtain Synchro.
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 8.0 m / 26.2 ft.
Flash Range Description: Lens aperture dependent Bundled EF-X8 flash is rated with a Guide Number of 8m at ISO 100 or 11m at ISO 200
Max Flash Sync: 1/180 1/250
Flash Exposure Compensation: -2 to +1 EV +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Hot Shoe, PC Sync Terminal
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-II
Other Memory: UHS-1 compliant  
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit DNG RAW .RAF 14-bit RAW, uncompressed or lossless compression; RAW + JPEG; TIFF (8/16-bit)
Movie File Format: MP4 (AVC H.264), AVI/MJPEG for Interval Movie MOV (MPEG-4 AVC/H.264, HEVC/H.265, Audio: Linear PCM / Stereo sound 24bit / 48KHz sampling); MP4 (MPEG-4 AVC/H.264, Audio: AAC)
Included Memory: 0.0 MB No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Infrared Threaded cable release, optional wired, Wi-Fi and Bluetooth
Connections (extended): Mini HMDI (Type-C), 3.5mm stereo microphone input USB Type-C (USB3.2 Gen1x1), Micro HDMI (Type D), PC-Sync, 3.5mm stereo mic jack, 3.5mm stereo headphone jack, 2.5mm remote jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 1.91  
Cycle time for RAW shooting in single shot mode (seconds per frame): 2.24  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
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): 5.9  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 9  
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): 0.80 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.105 seconds  
Shutter lag (full AF, with flash): 0.85 seconds  
Shutter Lag (prefocused): 0.120 seconds  
Shutter Lag (notes): Full Autofocus, Multi-area AF mode = 0.768 second  
Startup Time: 2.4 seconds  
Play -> Record Time: 1.3 seconds  
Flash cycle time, full power: 4.0 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 500 shots  
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI90 Proprietary NP-W235
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI90 Lithium-ion rechargeable 1 x Proprietary NP-W235 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes No
Dedicated Battery Charger Included: No
Internal Charging Supported: Yes
Software
Included Software: Software CD-ROM S-SW120  
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: Machined aluminum frame under black, white or yellow exterior, 16MP APS-C sensor, Pentax K-Mount, Sensor-shift Shake and Dust Reduction (4-stops), 6fps Burst Mode, Full HD 1080p Movies, HDR mode, Focus peaking in manual focus mode.