A digital camera (or digicam for short) is a camera that takes video or still photographs, or both, digitally by recording images via an electronic image sensor.
Front and back of a Canon PowerShot A95.

Many compact digital still cameras can record sound and moving video as well as still photographs. In the Western market, digital cameras outsell their 35 mm film counterparts.

Digital cameras can do things film cameras cannot: displaying images on a screen immediately after they are recorded, storing thousands of images on a single small memory device, recording video with sound, and deleting images to free storage space. Some can crop pictures and perform other elementary image editing. Fundamentally they operate in the same manner as film cameras, typically using a lens with a variable diaphragm to focus light onto an image pickup device. The combination of the diaphragm and a shutter mechanism is used to admit the correct amount of light to the imager, just as with film; the only difference is that the image pickup device is electronic rather than chemical.

Digital cameras are incorporated into many devices ranging from PDAs and mobile phones (called camera phones) to vehicles. The Hubble Space Telescope and other astronomical devices are essentially specialised digital cameras.

Wednesday, October 28, 2009

Canon Ixus 100 IS / Powershot SD780 IS

Canon Ixus 100 IS / Powershot SD780 IS
It may be the slimmest Digital ELPH Canon has ever created, but the impact couldn’t be bigger. The PowerShot SD780 IS Digital ELPH captivates the senses with bold saturated colors and a daringly original design that matches the intensity of Canon’s most innovative camera technology. Even when picture-taking conditions seem pretty unforgiving, you’ve got Canon on your side. So the shots you used to miss are the images you’ll now be sharing, and the movies you never too…


Specifications

  • Format
    Ultra Compact
  • Max resolution
    4000 x 3000
  • Low resolution
    4000 x 2248, 3264 x 2448, 2592 x 1944, 1600 x 1200, 640 x 480, 320 x 140
  • Image ratio w:h
    4:3,16:9
  • Effective pixels
    12.1 million
  • Sensor size
    1/2.3 " (6.16 x 4.62 mm, 0.28 cm²)
  • Pixel density
    43 MP/cm²
  • Sensor type
    CCD
  • ISO rating
    Auto, 80 ,100, 200, 400, 800, 1600
  • Zoom wide (W)
    33 mm

Release Date

  • First seen 9 February 2009

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