• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 35.00mm - 140.00mm (35mm eq.)
  • 1/2.33 inch 28.2mm2
  • 12.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • Detailed specifications
  • Canon PowerShot A1100 IS
  • Nikon Coolpix S640
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A1100 IS S640
Alternate Model Number(s):    
Camera Format: Compact Ultra Compact
Currently Manufactured: No No
Retail Price: $199.99 $249.95
Street Price:    
Date Available: 2009-03-15 2009-09-15
Tripod Mount: Yes Yes
Weight: 5.5 oz (155 g) 3.9 oz (110 g)
Size: 3.8 x 2.5 x 1.2 in.
(95 x 62 x 31 mm) 		3.6 x 2.2 x 0.8 in.
(91 x 55 x 21 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 12.1 12.0
Sensor Format: 1/2.3 inch 1/2.33 inch
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 28.198mm2 (6.13mm x 4.6mm)
Approximate Pixel Pitch: 1.54 microns 1.53 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 4:3
Color Filter Type: RGBG  
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: 4000 x 3000 (12.0 MP, 4:3),
4000 x 2248 (9.0 MP, 16:9),
3264 x 2448 (8.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		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)
Image File Format: JPEG (EXIF 2.2) JPEG
Continuous-mode frames/second: 2.0 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30)
320x240 (30) 		640x480 (30)
Movie File Format: AVI (Motion JPEG)  
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: Canon Zoom Lens Nikkor lens
Focal Length (35mm equivalent): 35 - 140mm 28 - 140mm
Focal Length (actual): 6.2 - 24.8mm 5 - 25mm
Zoom Ratio: 4.00x 5.00x
Aperture Range: f/2.7 (W) to f/5.6 (T) f/2.7 (wide) / f/6.6 (tele) - ???
Integrated ND Filter: No No
Normal Focus Range: 50 cm to Infinity
19.7 in to Infinity 		45 cm to Infinity
17.7 in to Infinity
Macro Focus Range: 3 - 50 cm
1.2 - 19.7 in 		2 cm to Infinity
0.8 in to Infinity
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF with Face Detection Contrast Detection with Face-Priority AF
Auto Focus Assist Light? Yes No
Manual Focus: No No
Viewfinder
Viewfinder: Optical / LCD LCD
Viewfinder Type: Real-image optical zoom  
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 2.7
Rear Display Resolution: 115,000 dots 230,000 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, 80, 100, 200, 400, 800, 1600, 3200* (* 3200 in special scene mode) Auto (100 - 1600) 100, 200, 400, 800, 1600, 3200, 6400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom  
Shutter Speed Range: 1/1600 - 15 sec  
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps  
Metering Modes: Evaluative, Center-weighted average, Spot, Face Detect AE  
Program Auto Exposure: Yes No
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
Creative Exposure Modes: Easy, Portrait, Landscape, Special Scene (Night Scene, Foliage, Snow, Beach, Sunset, Fireworks, Aquarium, ISO 3200), Indoor, Kids & Pets, Night Snapshot, Movie 16 Scene Modes
Self Timer: 2 or 10 seconds  
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Red-eye Reduction, Auto Red-eye Correction, Flash On, Flash Off; FE lock, Slow Synchro n/a
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: 1-13 ft./30cm-4.0m (W), 1-6.6 ft./30cm-2.0m (T) n/a
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
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (Motion JPEG)  
Included Memory: No memory included 45.0 MB
Included Memory Type:   built-in memory
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: Yes No
DPOF Compliant: Yes No
Remote Control:
Remote Control Type:    
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): 2.0  
Buffer size for JPEG shooting in burst mode (frames, max resolution): Unlimited  
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): 350 shots (NiMH AA) 270 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: 2 x AA Proprietary EN-EL12
Usable Battery Types: Alkaline Lithium disposables; NiMH rechargeables Lithium-ion rechargeable
Batteries Included: 2 x AA Alkaline disposables 1 x Proprietary EN-EL12 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Canon Software Suite CD-ROM Nikon Software Suite CD-ROM
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: Optical Image Stabilization, Face Detection, Motion Detection. Available in grey, blue, pink and green. Optical VR Image Stabilization, Motion Detection, Best Shot Selector (BSS), Smart Portrait System. Available in Calm Black, Velour Red, Precious Pink, and Pearl White.