• 1/2.33 inch 28.2mm2
  • 12.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • 1/2.33 inch 28.2mm2
  • 16.0 megapixels
  • 28.00mm - 560.00mm (35mm eq.)
  • Detailed specifications
  • Nikon Coolpix S640
  • Pentax Optio VS20
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: S640 VS20
Alternate Model Number(s):    
Camera Format: Ultra Compact Compact
Currently Manufactured: No No
Retail Price: $249.95 $249.95
Street Price:   $105.84
Date Available: 2009-09-15 2012-02-15
Tripod Mount: Yes Yes
Weight: 3.9 oz (110 g) 8.3 oz (235 g)
includes batteries
Size: 3.6 x 2.2 x 0.8 in.
(91 x 55 x 21 mm) 		4.4 x 2.4 x 1.5 in.
(112 x 61 x 38 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 12.0 16.0
Sensor Format: 1/2.33 inch 1/2.33 inch
Sensor size: 28.198mm2 (6.13mm x 4.6mm) 28.198mm2 (6.13mm x 4.6mm)
Approximate Pixel Pitch: 1.53 microns 1.33 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3 4:3
Color Filter Type:    
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: No Yes
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: 4000 x 3000 (12.0 MP, 4:3),
3968 x 2232 (8.9 MP, 16:9),
3264 x 2448 (8.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		4608 x 3456 (15.9 MP, 4:3),
3456 x 3456 (11.9 MP, 1:1),
4608 x 2592 (11.9 MP, 16:9),
3072 x 2304 (7.1 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
640 x 480 (0.3 MP, 4:3)
Image File Format: JPEG JPEG (EXIF 2.3)
Continuous-mode frames/second: n/a 1.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30) 1280x720 (30p/​15p)
640x480 (30p/​15p)
320x240 (30p/​15p)
Movie File Format:   AVI (Motion JPG)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: n/a n/a
Lens: Nikkor lens smc PENTAX zoom lens, 11 elements, 8 groups, 1 aspheric element
Focal Length (35mm equivalent): 28 - 140mm 28 - 560mm
Focal Length (actual): 5 - 25mm 5 - 100mm
Zoom Ratio: 5.00x 20.00x
Aperture Range: f/2.7 (wide) / f/6.6 (tele) - ??? f/3.1 (wide) / f4.8 (tele) - ???
Integrated ND Filter: No No
Normal Focus Range: 45 cm to Infinity
17.7 in to Infinity 		40 cm to Infinity
15.7 in to Infinity
Macro Focus Range: 2 cm to Infinity
0.8 in to Infinity 		1 - 20 cm
0.4 - 7.9 in
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x 7.2x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detection with Face-Priority AF Contrast Detection: 93 point AF, Spot AF, Auto Tracking AF, Macro, Super Macro, Infinity Landscape, Manual Focus
Auto Focus Assist Light? No No
Manual Focus: No Yes
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 3.0
Rear Display Resolution: 230,000 dots 460,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:   10.0x
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto (100 - 1600) 100, 200, 400, 800, 1600, 3200, 6400 Auto: 100-1600 (auto range adjustable), Digital SR 100-6400, Manual: 100-6400
Auto ISO Mode: Yes Yes
White Balance Settings:   Auto, Daylight, Shade, Tungsten, Fluorescent, Manual
Shutter Speed Range:   1/2500 - 4 sec
Bulb Mode: No No
Exposure Compensation:   +/- 2.0EV in 0.3EV steps
Metering Modes:   Multi
Program Auto Exposure: No Yes
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
Creative Exposure Modes: 16 Scene Modes Natural Skin Tone, Handheld Night Snap (5M), Night Scene Portrait, Night Scene, Digital Panorama (2M per frame), Landscape, Blue Sky, Sunset, Flower, Digital SR (ISO 3200-6400 5M), Kids, Pet, Portrait, Food, Fireworks, Surf & Snow, Sport, Fisheye, Sketch, Miniature Filter, Text, Frame Composite (3M)
Self Timer:   10s, 2s, Remote 3s seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: n/a Auto, Flash Off, Flash On, Auto + Redeye, On + Redeye
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a 17 feet (wide, auto ISO), 11 feet (tele, auto ISO)
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 SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format:   AVI (Motion JPG)
Included Memory: 45.0 MB 16.0 MB
Included Memory Type: built-in memory 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: No Yes
Remote Control: Yes
Remote Control Type:   Optional infrared
Connections (extended): DC Input  
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):   1.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   6
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): 270 shots 200 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary EN-EL12 Proprietary D-LI122
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary EN-EL12 Lithium-ion rechargeable 1 x Proprietary D-LI122 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Nikon Software Suite CD-ROM Software CD-ROM S-SW122
OS Compatibility:    
Miscellaneous
Notes & Features: Optical VR Image Stabilization, Motion Detection, Best Shot Selector (BSS), Smart Portrait System. Available in Calm Black, Velour Red, Precious Pink, and Pearl White. Sensor-shift image stabilization, Dual shutter release/zoom buttons, 720p HD movies, Optional IR remote, Digital level. Available in Noble Black or Brilliant White.