• 1/2.5 inch 24.7mm2
  • 8.2 megapixels
  • 37.00mm - 185.00mm (35mm eq.)
  • 1/3 inch 17.3mm2
  • 10.1 megapixels
  • 29.00mm - 87.00mm (35mm eq.)
  • Detailed specifications
  • Fujifilm FinePix J50
  • Nikon Coolpix S31
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: J50 S31
Alternate Model Number(s):    
Camera Format: Ultra Compact Compact
Currently Manufactured: No No
Retail Price: $179.95 $119.95
Street Price:   $89.00
Date Available: 2008-03-30 2013-02-15
Tripod Mount: No Yes
Weight: 5.0 oz (141 g) 6.5 oz (185 g)
includes batteries
Size: 3.8 x 2.2 x 0.9 in.
(96 x 55 x 23 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: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 8.2 10.1
Sensor Format: 1/2.5 inch 1/3 inch
Sensor size: 24.7104mm2 (5.76mm x 4.29mm) 17.28mm2 (4.8mm x 3.6mm)
Approximate Pixel Pitch: 1.76 microns 1.32 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 3:2 4:3
Color Filter Type:    
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 3264 x 2448 (8.0 MP, 4:3),
3264 x 2176 (7.1 MP, 3:2),
2304 x 1728 (4.0 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		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 JPEG
Continuous-mode frames/second: n/a 1.5
Video Capture
Can take movies: Yes Yes
Movie Resolution: 320x240 (30) 1280x720 (30p)
Movie File Format: AVI (Motion JPEG)  
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out:
HD Video Connection:
Lens & Optics
Lens Mount: n/a n/a
Lens: Fujinon Zoom NIKKOR; 6 elements in 5 groups
Focal Length (35mm equivalent): 37 - 185mm 29 - 87mm
Focal Length (actual): 6.2 - 31mm 4.1 - 12.3mm
Zoom Ratio: 5.00x 3.00x
Aperture Range: f/3.2 - f/5.2 (wide); f/4.8 - f/8.0 (tele) f/3.3 (wide) / f/5.9 (tele) - ???
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: 5 - 80 cm
2.0 - 31.5 in 		5 cm to Infinity
2.0 in to Infinity
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 6.9x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect Auto Focus (Center) Contrast Detection: Center, Face detection
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes No
Viewfinder
Viewfinder: LCD LCD
Viewfinder Type:    
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): 2.7 2.7
Rear Display Resolution: 230,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:    
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto, 100, 200, 400, 800 Auto, 80, 100, 200, 400, 800, 1600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light Auto
Shutter Speed Range: 1/1500 - 4 sec 1/2000 - 4 sec
Bulb Mode: No No
Exposure Compensation:   +/- 2.0EV in 0.3EV steps
Metering Modes: TTL 64-zones metering Matrix, Center-weighted (digital zoom less than 2x), Spot (digital zoom 2X or more)
Program Auto Exposure: No Yes
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
Creative Exposure Modes: Baby, Picture Stabilization, Portrait, Landscape, Sport, Night, Natural light, Beach, Snow, Fireworks, Sunset, Flower, Party, Museum, Text, Manual 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):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Red-eye Reduction, Forced Flash, Suppressed Flash, Slow Synchro., Slow Synchro with Red-eye Reduction Auto, Auto w/ Red-eye Reduction, Flash Off, Flash On, w/ Red-eye Reduction, Flash Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: Wide angle: approx. 0.5m / 1.6 ft. to 3.5m / 11.5 ft.; Telephoto: approx. 0.5m / 1.6 ft. to 2.2m / 7.2 ft.; Macro: approx. 0.5m / 1.6 ft. to 0.8m / 2.6 ft. 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:    
Flash Exposure Compensation:    
External Flash Connection: n/a n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC / xD SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (Motion JPEG)  
Included Memory: 12.0 MB 25.0 MB
Included Memory Type: Internal 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 Full (LOW) Speed USB 2.0 High Speed
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: No
Remote Control Type:    
Connections (extended):    
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):   1.5
Buffer size for JPEG shooting in burst mode (frames, max resolution):   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):   260 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary NP-40ND Proprietary EN-EL12
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-40ND 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: FinePix Viewer Nikon ViewNX 2 CD-ROM
OS Compatibility:   Windows, Mac OS
Miscellaneous
Notes & Features: Waterproof (up to 16.4 feet), Shockproof (up to 3.9 feet) and Dustproof. Available in White, Blue, Pink, Brown or Yellow.