• 1/2.3 inch 28.1mm2
  • 12.4 megapixels
  • ISO 100 - 6400
  • 1/3 inch 17.3mm2
  • 10.1 megapixels
  • 29.00mm - 87.00mm (35mm eq.)
  • Detailed specifications
  • Pentax Q10
  • Nikon Coolpix S31
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Pentax Q
Q vs Q10
 
Successor:    
General
Model Number: Q10 S31
Alternate Model Number(s):    
Camera Format: Compact System Camera Compact
Currently Manufactured: No No
Retail Price: $599.95 $119.95
Street Price: $349.95 $89.00
Date Available: 2012-10-15 2013-02-15
Tripod Mount: Yes Yes
Weight: 10.4 oz (296 g)
includes batteries, kit lens
6.5 oz (185 g)
includes batteries
Size: 4.0 x 2.3 x 1.3 in.
(102 x 58 x 33 mm)
4.1 x 2.6 x 1.6 in.
(105 x 65 x 42 mm)
Waterproof: No Yes
Waterproof Depth: n/a  
Image Sensor
Sensor Type: CMOS CCD
Sensor Manufacturer:    
Effective Megapixels: 12.4 10.1
Sensor Format: 1/2.3 inch 1/3 inch
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 17.28mm2 (4.8mm x 3.6mm)
Approximate Pixel Pitch: 1.54 microns 1.32 microns
Focal Length Multiplier: 5.5x n/a
Aspect Ratio: 4:3 4:3
Color Filter Type: RGBG  
Anti Aliasing Filter: Fixed  
Self-Cleaning: Yes No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 49  
DxO Color Depth Score (bits): 21.1  
DxO Dynamic Range Score (evs): 10.9  
DxO Maximum Effective ISO Score (iso): 183  
Image Capture
Image Resolution: 4000 x 3000 (12.0 MP, 4:3),
4000 x 2664 (10.7 MP, 3:2),
4000 x 2248 (9.0 MP, 16:9),
2992 x 2992 (9.0 MP, 1:1),
3456 x 2592 (9.0 MP, 4:3),
3456 x 2304 (8.0 MP, 3:2),
3456 x 1944 (6.7 MP, 16:9),
2592 x 2592 (6.7 MP, 1:1),
2688 x 2016 (5.4 MP, 4:3),
2688 x 1792 (4.8 MP, 3:2),
2688 x 1512 (4.1 MP, 16:9),
2016 x 2016 (4.1 MP, 1:1),
1920 x 1440 (2.8 MP, 4:3),
1920 x 1280 (2.5 MP, 3:2),
1920 x 1080 (2.1 MP, 16:9),
1440 x 1440 (2.1 MP, 1:1)
3648 x 2736 (10.0 MP, 4:3),
2272 x 1704 (3.9 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3)
Image File Format: JPEG (Exif 2.3), 12-bit DNG RAW JPEG
Continuous-mode frames/second: 5.0 1.5
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p)
1280x720 (30p)
640x480 (30p)
1280x720 (30p)
Movie File Format: MOV (AVC H.264) with monaural sound  
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: Pentax Q n/a
Lens: 02 Standard Zoom smc Pentax 5-15mm f/2.8-4.5 ED AL [IF] NIKKOR; 6 elements in 5 groups
Focal Length (35mm equivalent): 28 - 83mm 29 - 87mm
Focal Length (actual): 5 - 15mm 4.1 - 12.3mm
Zoom Ratio: 3.00x 3.00x
Aperture Range: f/2.8 (W) / f/4.5 (T) - f/8 f/3.3 (wide) / f/5.9 (tele) - ???
Integrated ND Filter: No No
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:   5 cm to Infinity
2.0 in to Infinity
Filter Thread: 40.5mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detection: AF Single (w focus lock, focus/release priority selectable), AF Continuous, AF Face Detection, Manual; Auto 25 Point, User-Selectable, Center Contrast Detection: Center, Face detection
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes No
Viewfinder
Viewfinder: No / LCD LCD
Viewfinder Type: Optional O-VF1 Optical Viewfinder (hotshoe mount)  
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No No
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 2.7
Rear Display Resolution: 460,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x  
Top Deck Display: No
Exposure
Maximum ISO (native): 6400  
Minimum ISO (native): 100  
ISO Settings: Auto (100-6400), 100-6400, 1/3 steps Auto, 80, 100, 200, 400, 800, 1600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, CTE Auto
Shutter Speed Range: 1/8000 - 30 sec 1/2000 - 4 sec
Bulb Mode: Yes No
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: Multi-segment, Center-weighted, Spot Matrix, Center-weighted (digital zoom less than 2x), Spot (digital zoom 2X or more)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes No
Shutter Priority: Yes No
Full Manual Exposure: Yes No
Creative Exposure Modes: Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Night Scene, Night Scene HDR, Night Snap, Forest, Surf & Snow, HDR, Backlight Silhouette, Kids, Pet, Quick Macro, Food, Candlelight, Stage Lighting, Museum; Digital filters (capture) - Image Tone:(Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing) Close Up, Continuous shooting, Diorama effect, Fireworks Show, Food, Interval shooting, Mirror, Underwater, Soft
Self Timer: 2 or 10 seconds 10, smile seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Flash Off, Flash On, Auto + Redeye, On + Redeye, Soft Auto, Auto w/ Red-eye Reduction, Flash Off, Flash On, w/ Red-eye Reduction, Flash Off
Flash Guide Number (ISO 100): 4.9 m / 16.1 ft. n/a
Flash Range Description: Lens dependent. GN of ~7m at ISO 200. Auto ISO: [W]: 0.5 to 3.5m (1ft. 8 in. to 11 ft.) [T]: 0.5 to 2.0m (1ft 8 in. to 6 ft 6 in.)
Max Flash Sync: 1/2000  
Flash Exposure Compensation: -2 to +1 EV  
External Flash Connection: Hot Shoe n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes No
Uncompressed Format: 12-bit DNG RAW  
Movie File Format: MOV (AVC H.264) with monaural sound  
Included Memory: 0.0 MB 25.0 MB
Included Memory Type:   Internal
Connectivity
Built-In Wi-Fi: No No
NFC: No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes
Remote Control Type: Optional IR  
Connections (extended): Micro (Type D) HDMI  
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
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):    
Camera penalizes early shutter press?
JPEG shooting speed in burst mode (fps, max resolution): 5.0 1.5
Buffer size for JPEG shooting in burst mode (frames, max resolution): 5 4
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):    
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 250 shots 260 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI68 Proprietary EN-EL12
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI68 Lithium-ion rechargeable 1 x Proprietary EN-EL12 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software CD-ROM S-SW131 (includes SilkyPix) Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows XP/Vista/7, Mac OS X 10.4+ Windows, Mac OS
Miscellaneous
Notes & Features: Newly adopted CMOS image sensor and upgraded AF performance. Available in red or silver. Waterproof (up to 16.4 feet), Shockproof (up to 3.9 feet) and Dustproof. Available in White, Blue, Pink, Brown or Yellow.