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

Panasonic Lumix DMC-TZ7 / DMC-ZS3

Panasonic Lumix DMC-TZ7 / DMC-ZS3


10.1 Megapixel Digital Camera Intelligent Auto Mode Helps prevent shooting errors. LEICA DC Vario-Elmar Lens 25mm wide angle Venus Engine HD Supports AVCHD Lite & HDMI Silver.


Specifications

  • Format
    Compact
  • Also known as
    Panasonic Lumix DMC-TZ7
  • Max resolution
    3648 x 2736
  • Low resolution
    3776 x 2520, 3968 x 2232, 3072 x 2304, 3168 x 2112, 3328 x 1872, 2560 x 1920, 2656 x 1768, 2784 x 1568, 2048 x 1536, 2112 x 1408, 2208 x 1248, 1920 x 1080, 1600 x 1200, 640 x 480
  • Image ratio w:h
    16:9, 4:3, 3:2
  • Effective pixels
    10.1 million
  • Sensor photo detectors
    12.7 million
  • Sensor size
    1/2.33 " (6.13 x 4.60 mm, 0.28 cm²)
  • Pixel density
    36 MP/cm²
  • Sensor type
    CCD

Release Date

  • First seen
    7 January 2009
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