• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • APS-C 369.0mm2
  • 24.2 megapixels
  • ISO 200 - 12,800
  • Detailed specifications
  • Pentax K-S2
  • Fujifilm X-A5
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Fujifilm X-A3
X-A3 vs X-A5
Successor:   Fujifilm X-A7
X-A5 vs X-A7
General
Model Number: K-S2 X-A5
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $799.95 $599.99
Street Price: $499.00 $472.66
Date Available: 2015-02-15 2018-02-08
Tripod Mount: Yes Yes
Weight: 30.3 oz (859 g)
includes batteries, kit lens
17.5 oz (496 g)
includes batteries, kit lens
Size: 4.8 x 3.6 x 2.6 in.
(122 x 91 x 65 mm)
4.6 x 2.7 x 1.6 in.
(117 x 68 x 40 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:    
Effective Megapixels: 20.1 24.2
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: 4.29 microns 3.92 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 5472 x 3648 (20.0 MP, 3:2),
4224 x 2816 (11.9 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
6000 x 4000 (24.0 MP, 3:2),
4242 x 2832 (12.0 MP, 3:2),
3008 x 2000 (6.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
4240 x 2384 (10.1 MP, 16:9),
3008 x 1688 (5.1 MP, 16:9),
4000 x 4000 (16.0 MP, 1:1),
2832 x 2832 (8.0 MP, 1:1),
2000 x 2000 (4.0 MP, 1:1),
9600 x 1440 (13.8 MP, Other),
2160 x 9600 (20.7 MP, Other),
6400 x 1440 (9.2 MP, Other),
2160 x 6400 (13.8 MP, Other)
Image File Format: JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG) JPEG (Exif Ver 2.3), .RAF RAW, RAW + JPEG
Continuous-mode frames/second: 5.2 5.8
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
3840x2160 (15p)
1920x1080 (60p/​50p/​24p/​23.98p)
1280x720 (60p/​50p/​24p/​23.98p)
1280x720 (100p)
Movie File Format: MPEG-4 AVC/H.264 (MOV) H.264 (MOV) with stereo sound
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) Fujifilm X
Lens: smc Pentax-D AL 18-50mm f/4-5.6 DC WR RE; 11 elements in 8 groups FUJINON XC 15-45mmF3.5-5.6 OIS PZ
Focal Length (35mm equivalent): 27 - 75mm 22.5 - 67.5mm
Focal Length (actual): 18 - 50mm 15 - 45mm
Zoom Ratio: 2.78x 3.00x
Aperture Range: f/4 - f/22 (wide) / f/5.6 - f/32 (tele) f/3.5 (wide) / f/5.6 (tele) - f/22
Integrated ND Filter: No No
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
13 cm to Infinity
5.1 in to Infinity
Macro Focus Range:    
Filter Thread: 58.0mm 52.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: SAFOX 11 TTL phase-matching: 11 points (9 cross type focus points in the center) Hybrid Phase/Contrast Detection AF: Single point AF: 7x13 (Changeable size of AF frame among 5 types), Zone AF: 3x3 / 5x5 / 7x7 from 91 areas on 7x13 grid, Wide/Tracking AF: (up to 18 area)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD No / LCD
Viewfinder Type: SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., 20.5mm eyepoint, -2.5 to +1.5 diopter  
Focus Peaking: Yes Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.63x  
Viewfinder Magnification (nominal/claimed): 0.95x  
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots (230,400 px) 1,036,800 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes No
Selfie Screen: Yes Yes
Max Playback Zoom: 16.0x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 51200 12800
Minimum ISO (native): 100 200
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) 200-12800, Extended output sensitivity equivalent ISO 100, 25600 and 51200; AUTO, AUTO2, AUTO3
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten Light, Flash, CTE, Manual, Color Temperature Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Custom1-3, Underwater
Shutter Speed Range: 1/6000 - 30 sec 1/32000 - 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 Multi, Center-weighted, Spot TTL 256-zones metering: Multi, Spot, Average
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Shutter & Aperture Priority (TAv), Sensitivity Priority, Advanced HDR, Scene Mode (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR*, Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum); Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; Dynamic range adjustment: Highlight, shadow Scene: Portrait Enhancer, Landscape, Night, Sports, Night (Tripod), Portrait, Fireworks, Sunset, Snow, Beach, Party, Flower, Text, Multiple Exposures; Film Simulation (PROVIA/STANDARD, Velvia/VIVID, ASTIA/SOFT, CLASSIC CHROME, PRO Neg Hi, PRO Neg. Std, MONOCHROME, MONOCHROME+Ye FILTER, MONOCHROME+R FILTER, MONOCHROME+G FILTER, SEPIA); Dynamic range setting: AUTO (100-400%), 100%, 200%, 400%; HDR (Auto, 1.0EV, 1.5EV, 2.0EV, 2.5EV, 3.0EV); Advanced Filters (Toy camera, Miniature, Pop color, High-key, Low-key, Dynamic tone, Fish-eye, Soft focus, Cross screen, Partial color (Red / Orange / Yellow / Green / Blue / Purple), Fog Remove, HDR Art); Motion Panorama
Self Timer: 2 or 12 seconds 2, 10, Smile, Buddy, Group seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto Flash Discharge, Auto Flash + Red-eye Reduction (Auto Picture, Scene) Flash On, Flash On+ Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, Manual Flash Discharge (Full-1/128) Auto, Forced Flash, Suppressed Flash, Slow Synchr, Rear-curtain Synchro, Commander; Red-eye reduction available
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 4.0 m / 13.1 ft.
Flash Range Description: GN=12 (m, ISO 100); range depends on lens aperture GN=4m (ISO 100) or 5.7m (ISO 200)
Max Flash Sync: 1/180 1/180
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Hot shoe
Built-In Wireless Flash Control: No Trigger Only
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) .RAF RAW, RAW + JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV) H.264 (MOV) with stereo sound
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR or Wi-Fi Wi-Fi or optional wired (RR-90 or 2.5mm jack)
Connections (extended): Micro (Type D) HMDI Micro (Type D) HDMI, 2.5mm wired remote/external mic jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.35 1.33
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): 0.35 1.22
Camera penalizes early shutter press? No Yes
JPEG shooting speed in burst mode (fps, max resolution): 5.2 5.8
Buffer size for JPEG shooting in burst mode (frames, max resolution): 28 22
RAW shooting speed in burst mode (fps): 5.2 5.7
Buffer size for RAW shooting in burst mode (frames): 9 6
RAW+JPEG shooting speed in burst mode (fps): 5.2 5.7
Buffer Size for RAW+JPEG shooting in burst mode (frames): 6 6
Shutter lag (full AF, wide/mid): 0.12 seconds 0.33 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 0.75 seconds  
Shutter lag (prefocused, live view - DSLR): 0.214 seconds  
Shutter Lag (manual focus): 0.098 seconds 0.154 seconds
Shutter lag (full AF, with flash): 0.15 seconds 0.46 seconds
Shutter Lag (prefocused): 0.077 seconds 0.043 seconds
Shutter Lag (notes):    
Startup Time: 1.0 seconds 3.1 seconds
Play -> Record Time: 0.2 seconds 1.4 seconds
Flash cycle time, full power: 2.3 seconds 1.9 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   450 shots
Battery Life, Still (CIPA Rating OVF/EVF): 410 shots  
Battery Life, Video:   90 minutes
Battery Form Factor: Proprietary D-LI109 Proprietary NP-W126S
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary NP-W126S Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes No
Internal Charging Supported: No Yes
Software
Included Software: Digital Camera Utility 5 Software CD-ROM Viewer software, RAW File Converter, etc. available via download
OS Compatibility:    
Miscellaneous
Notes & Features: 20 megapixel AA Filter-less CMOS sensor with Prime MII processor, built-in Wi-Fi with NFC, weather-resistant body, all-new retractable kit zoom lens. The K-S2 will be available in 3 standard colors: black, white, and graphite with an orange accent. RICOH IMAGING is also pleased to announce the color order service for the PENTAX K-S2. The PENTAX K-S2 offers a choice of seven color options in two outdoor-themed collections: three in the Nature Collection; Forest Green, Desert Beige, and Stone Gray as well as four in the Sports Collection: White and Lime, Black and Pink, White with a Racing Stripe, and Black with a Racing Stripe. Available in two-toned silver/black, silver/brown and silver/pink.