• 1/2.33 inch 28.2mm2
  • 12.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Nikon Coolpix S640
  • Sony Alpha SLT-A55V
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: S640 A55
Alternate Model Number(s):   SLT-A55 (w/o GPS)
Camera Format: Ultra Compact SLR
Currently Manufactured: No No
Retail Price: $249.95 $849.99
Street Price:   $733.99
Date Available: 2009-09-15 2010-10-15
Tripod Mount: Yes Yes
Weight: 3.9 oz (110 g) 25.6 oz (727 g)
includes batteries, kit lens
Size: 3.6 x 2.2 x 0.8 in.
(91 x 55 x 21 mm)
4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 12.0 16.2
Sensor Format: 1/2.33 inch APS-C
Sensor size: 28.198mm2 (6.13mm x 4.6mm) 369.72mm2 (23.7mm x 15.6mm)
Approximate Pixel Pitch: 1.53 microns 4.82 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3 3:2, 16:9
Color Filter Type:   RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:   73
DxO Color Depth Score (bits):   23.0
DxO Dynamic Range Score (evs):   12.4
DxO Maximum Effective ISO Score (iso):   818
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)
4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other),
7152 x 1080 (7.7 MP, Other),
4912 x 1080 (5.3 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
Image File Format: JPEG JPEG, RAW (ARW 2.2), RAW+JPEG
Continuous-mode frames/second: n/a 9.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30) 1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
Movie File Format:   AVCHD, MP4
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Sony Alpha (Minolta A)
Lens: Nikkor lens Sony 18-55mm f/3.5-5.6 DT SAM
Focal Length (35mm equivalent): 28 - 140mm 27 - 83mm
Focal Length (actual): 5 - 25mm 18 - 55mm
Zoom Ratio: 5.00x 3.00x
Aperture Range: f/2.7 (wide) / f/6.6 (tele) - ??? f/3.5 - 22 (W), f/5.6 - ?? (T)
Integrated ND Filter: No No
Normal Focus Range: 45 cm to Infinity
17.7 in to Infinity
 
Macro Focus Range: 2 cm to Infinity
0.8 in to Infinity
 
Filter Thread: n/a 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes No
Digital Zoom Values: Up to 4x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detection with Face-Priority AF Phase Detection: 15 points (3 points cross type); Wide, Spot, Local.
Auto Focus Assist Light? No Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: LCD EVF / LCD
Viewfinder Type:   EVF type; 1.1cm (0.43") 1,152Kdots, 100% coverage, 1.10x mag., 19mm eyepoint, -4 to +4 diopter
Focus Peaking: No No
EVF Resolution: n/a  
Viewfinder Magnification (35mm equivalent):   0.73x
Viewfinder Magnification (nominal/claimed):   1.10x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 921,600 dots
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom:   11.8x
Top Deck Display: No
Exposure
Maximum ISO (native):   12800
Minimum ISO (native):   100
ISO Settings: Auto (100 - 1600) 100, 200, 400, 800, 1600, 3200, 6400 Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600)
Auto ISO Mode: Yes Yes
White Balance Settings:   Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation)
Shutter Speed Range:   1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation:   +/- 2.0EV in 0.3EV steps
Metering Modes:   1200-zone Evaluative, Center-weighted, Spot
Program Auto Exposure: No Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: 16 Scene Modes Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, Night view, Hand-held Twilight, Sweep Panorama (2D/3D)
Self Timer:   2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: n/a Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a 10.0 m / 32.8 ft.
Flash Range Description: n/a Lens dependent
Max Flash Sync:   1/160
Flash Exposure Compensation:   +/- 2.0 EV in 0.3EV steps
External Flash Connection: n/a Hot shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC MS PRO Duo / SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   RAW (ARW 2.2), RAW+JPEG
Movie File Format:   AVCHD, MP4
Included Memory: 45.0 MB  
Included Memory Type: built-in memory  
Connectivity
Built-In Wi-Fi: No No
NFC:
Bluetooth: No No
Built-In GPS: No Yes
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: Yes
Remote Control Type:   Optional Wireless or Wired
Connections (extended): DC Input Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.52
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.52
Buffer size for RAW shooting in single shot mode (frames):   28
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   9.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   32
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):   0.22 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.214 seconds
Shutter lag (full AF, with flash):   0.48 seconds
Shutter Lag (prefocused):   0.103 seconds
Shutter Lag (notes):   Full AF, wide-area mode = 0.218s
Startup Time:   0.9 seconds
Play -> Record Time:   0.6 seconds
Flash cycle time, full power:   3.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 270 shots  
Battery Life, Still (CIPA Rating OVF/EVF):   330 shots
Battery Life, Video:    
Battery Form Factor: Proprietary EN-EL12 Proprietary NP-FW50
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary EN-EL12 Lithium-ion rechargeable 1 x Proprietary NP-FW50 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 (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR)
OS Compatibility:   Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +)
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. SteadyShot INSIDE Image Stabilization, Articulating LCD, 1080i HD Video, Multi-frame NR, Hand-held Twilight, Auto HDR, D-Range Optimizer, 2D/3D Sweep Panorama, Smile Shutter, DOF Preview, 10fps Burst Mode, Built-in GPS. SLT-A55 is identical but without GPS.