• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • APS-C 366.6mm2
  • 24.2 megapixels
  • 28.00mm (35mm eq.)
  • Detailed specifications
  • Pentax K-S2
  • Ricoh GR III
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Ricoh GR II
GR II vs GR III
Successor:    
General
Model Number: K-S2 GR III
Alternate Model Number(s):    
Camera Format: SLR Compact
Currently Manufactured: No Yes
Retail Price: $799.95 $899.95
Street Price: $499.00 $970.97
Date Available: 2015-02-15 2019-03-22
Tripod Mount: Yes Yes
Weight: 30.3 oz (859 g)
includes batteries, kit lens
9.1 oz (257 g)
includes batteries
Size: 4.8 x 3.6 x 2.6 in.
(122 x 91 x 65 mm)
4.3 x 2.4 x 1.3 in.
(109 x 62 x 33 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) 366.6mm2 (23.50mm x 15.60mm)
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 Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
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),
4800 x 3200 (15.4 MP, 3:2),
3360 x 2240 (7.5 MP, 3:2),
1920 x 1080 (2.1 MP, 16:9),
4000 x 4000 (16.0 MP, 1:1),
3200 x 3200 (10.2 MP, 1:1),
2240 x 2240 (5.0 MP, 1:1),
1280 x 1280 (1.6 MP, 1:1)
Image File Format: JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG) JPEG (EXIF 2.3), 14-bit RAW (DNG), RAW+JPEG
Continuous-mode frames/second: 5.2 4.3
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
1920x1080 (60p/​30p/​24p)
Movie File Format: MPEG-4 AVC/H.264 (MOV) MOV (Image: MPEG-4 AVC/H.264, Sound: Linear PCM)
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 Display Port
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2/3) n/a
Lens: smc Pentax-D AL 18-50mm f/4-5.6 DC WR RE; 11 elements in 8 groups GR lens, 6 elements in 4 groups with 2 aspheric elements
Focal Length (35mm equivalent): 27 - 75mm 28mm
Focal Length (actual): 18 - 50mm 18.3mm
Zoom Ratio: 2.78x 1.00x
Aperture Range: f/4 - f/22 (wide) / f/5.6 - f/32 (tele) f/2.8 - f/16, with 9-bladed diaphragm; 2EV ND filter
Integrated ND Filter: No Yes
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
10 cm to Infinity
3.9 in to Infinity
Macro Focus Range:   6 - 12 cm
2.4 - 4.7 in
Filter Thread: 58.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No Yes
Digital Zoom Values: n/a 35mm eq. crop mode
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 AF Phase/Contrast Detection: Auto-area AF, Zone AF, Select AF, Pinpoint AF, Tracking AF, Continuous AF, MF, Snap, Infinity
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 Optional hotshoe mounted optical viewfinders
Focus Peaking: Yes No
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 No
Tilt Swivel Screen: Yes No
Selfie Screen: Yes No
Max Playback Zoom: 16.0x 16.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 51200 102400
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) Auto, ISO 100 - 102,400
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 Auto White Balance, Multi Auto White Balance, Daylight, Shade, Cloudy, Fl. - Daylight Color, Fl. - Daylight White, Fl. - Cool White, Fl. - Warm White, Tungsten, CTE, Manual White Balance, Color Temperature
Shutter Speed Range: 1/6000 - 30 sec 1/4000 - 1200 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 Multi-segment, Center-weighted, Spot, Highlight-weighted
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 Standard, Vivid, Monotone, Soft Monotone, Hard Monotone, Hi-Contrast B&W, Positive Film, Bleach Bypass, Retro, HDR Tone, Custom1, Custom 2; Highlight Correction, Shadow Correction
Self Timer: 2 or 12 seconds 2, 12 seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
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) Flash On, Flash On+Red-eye, Slow-speed Sync, Slow Sync+Red-eye
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. n/a
Flash Range Description: GN=12 (m, ISO 100); range depends on lens aperture n/a
Max Flash Sync: 1/180  
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps -2 to +1 EV
External Flash Connection: Hot Shoe Hot Shoe (Compatible with P-TTL Auto Flash)
Built-In Wireless Flash Control: No No
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) 14-bit RAW (DNG), RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV) MOV (Image: MPEG-4 AVC/H.264, Sound: Linear PCM)
Included Memory: No memory included 2,000.0 MB
Included Memory Type:   Internal
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes No
Headphone Jack: No No
External Connections: USB 2.0 High Speed,WiFi USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR or Wi-Fi Via Wi-Fi/Bluetooth
Connections (extended): Micro (Type D) HMDI USB-C (supports DisplayPort)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.35 0.66
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 0.65
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.2 4.3
Buffer size for JPEG shooting in burst mode (frames, max resolution): 28 Unlimited
RAW shooting speed in burst mode (fps): 5.2 4.1
Buffer size for RAW shooting in burst mode (frames): 9 9
RAW+JPEG shooting speed in burst mode (fps): 5.2 4.3
Buffer Size for RAW+JPEG shooting in burst mode (frames): 6 9
Shutter lag (full AF, wide/mid): 0.12 seconds 0.18 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 0.028 seconds
Shutter lag (full AF, with flash): 0.15 seconds  
Shutter Lag (prefocused): 0.077 seconds 0.026 seconds
Shutter Lag (notes):    
Startup Time: 1.0 seconds 0.7 seconds
Play -> Record Time: 0.2 seconds 0.5 seconds
Flash cycle time, full power: 2.3 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   200 shots
Battery Life, Still (CIPA Rating OVF/EVF): 410 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI109 Proprietary DB-110
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary DB-110 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  
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.