Canon PowerShot A640 specs

General

• Packaged Quantity 1
• Product Type Digital camera - Compact
• Resolution 10 megapixels
• Optical Sensor Type CCD
• Total Pixels 10,400,000 pixels
• Effective Sensor Resolution 10,000,000 pixels
• Optical Sensor Size 1/1.8"
• Optical Zoom 4 x
• Digital Zoom 4 x
• Image Processor DIGIC II
• Auto Focus TTL contrast detection
• Auto Focus Points (Zones) Qty 9
• AE/AF Control FlexiZone
• Digital Video Format AVI
• Image Recording Format JPEG
• AV Interfaces Composite video

Exposure & White Balance

• Light Sensitivity ISO 800,
  ISO 100,
  ISO 200,
  ISO 80,
  ISO 400,
  ISO auto
• Exposure Metering Evaluative,
  Center-weighted,
  Spot
• Exposure Modes Program,
  Automatic,
  Shutter-priority,
  Manual,
  Aperture-priority
• Shooting Programs Color accent,
  Snow,
  Night snapshot,
  Color swap,
  Beach,
  Underwater,
  Stitch assist,
  Indoor,
  Foliage,
  Kids & pets,
  Night scene,
  Fireworks,
  Portrait mode,
  Landscape
• Special Effects Vivid,
  Black & White,
  Sepia,
  Neutral,
  Darker Skin Tone,
  Lighter Skin Tone,
  Positive,
  Custom Effect
• White Balance Automatic,
  Presets,
  Custom
• White Balance Presets Daylight,
  Tungsten light,
  Underwater,
  Fluorescent,
  Cloudy
• Max Shutter Speed 1/2500 sec
• Min Shutter Speed 15 sec
• Exposure Compensation ±2 EV range, in 1/3 EV steps

Lens System

• Type 4 x x Zoom lens - 7.3 mm - 29.2 mm - F/2.8-4.1
• Focal Length Equivalent to 35mm Camera 35 - 140 mm
• Focus Adjustment Manual,
  Automatic
• Min Focus Range 17.7 in
• Macro Focus Range 0.4 in
• Zoom Adjustment Motorized drive
• Lens Construction 7 groups / 8 elements
• Features Aspherical lens,
  Built-in lens shield

Camera Flash

• Camera Flash Built-in flash
• Flash Modes Rear curtain sync,
  Fill-in mode,
  Slow synchro,
  Auto mode,
  Flash OFF mode,
  Red-eye reduction
• Features Flash +/- compensation,
  AF illuminator
• Effective Flash Range 1.5 ft - 14 ft

Additional Features

• Continuous Shooting Speed 1.5 frames per second
• Self Timer Delay 2 sec,
  10 sec
• Additional Features Digital image rotation,
  Display brightness control,
  Blur warning,
  Audio recording,
  AF lock,
  DPOF support,
  RGB primary color filter,
  Safety zoom,
  Digital tele-converter,
  FE lock,
  Built-in speaker,
  AE lock,
  Auto power save,
  Digital noise reduction,
  Histogram display,
  Camera orientation detection,
  PictBridge support,
  USB 2.0 compatibility,
  Direct print

Viewfinder

• Viewfinder Type Optical - Real-image zoom

Display

• Type 2.5 in LCD display
• Display Features Rotating

Connections

• Connector Type 1 x USB,
  1 x Composite video/audio output,
  1 x DC power input

Software

• Software Canon ZoomBrowser EX,
  Canon PhotoStitch,
  Drivers & Utilities,
  Canon ImageBrowser,
  Canon Remote Capture

System Requirements for PC Connection

• Operating System Support MS Windows 98 SE,
  MS Windows XP,
  MS Windows 2000,
  Apple Mac OS X 10.2 - 10.4,
  MS Windows ME
• Peripheral Devices USB port,
  SVGA monitor,
  CD-ROM drive

Miscellaneous

• Included Accessories USB cable,
  Wrist strap,
  Audio / video cable

Battery

• Supported Battery AA
• Supported Battery 4 x AA Alkaline battery ( Included )

Memory / Storage

• Memory Card Slot SD card
• Supported Memory Cards SDHC Memory Card,
  MultiMediaCard,
  SD Memory Card
• Included Memory Card 32 MB MultiMediaCard
• Image Storage Super-fine JPEG 3648 x 2736,
  Fine JPEG 3648 x 2736,
  Normal JPEG 3648 x 2736,
  Super-fine JPEG 2816 x 2112,
  Fine JPEG 2816 x 2112,
  Normal JPEG 2816 x 2112,
  Super-fine JPEG 2272 x 1704,
  Fine JPEG 2272 x 1704,
  Normal JPEG 2272 x 1704,
  Super-fine JPEG 1600 x 1200,
  Fine JPEG 1600 x 1200,
  Normal JPEG 1600 x 1200,
  Super-fine JPEG 640 x 480,
  Fine JPEG 640 x 480,
  Normal JPEG 640 x 480,
  Super-fine JPEG 3648 x 2048,
  Fine JPEG 3648 x 2048,
  Normal JPEG 3648 x 2048
• Video Capture AVI - 640 x 480,
  AVI - 640 x 480,
  AVI - 320 x 240,
  AVI - 320 x 240,
  AVI - 160 x 120

Dimensions & Weight

• Width 4.3 in
• Depth 1.9 in
• Height 2.6 in
• Weight 8.6 oz

Environmental Parameters

• Min Operating Temperature 32 °F
• Max Operating Temperature 104 °F

CNET Labs' Benchmarks

• Labs information All values are expressed in seconds. Please visit our <ref type="link" url="http://reviews.cnet.com/Labs/4520-6603 7-1014358-1.html">labs information page</ref> for information on how digital cameras are tested.
• CNET Labs Flash shot to shot time 2.4
• CNET Labs Shot to shot time typical 1.7
• CNET Labs Shutter lag bright 0.5
• CNET Labs Shutter lag dim 1.0
• CNET Labs Typical burst speed 1.3
• CNET Labs Wake up time 1.5