Sunday, December 21, 2008

compact digital cameras

Storage Media:

Digital cameras use memory to capture and store images. Some of the storages media used are onboard flash memory, 3. 5 " floppy disks, video floppy disk, PCMCIA hard drives, CD or DVD, CompactFlash memory cards, Microdrives, Memory Stick, SD / MMC, MiniSD Card, MicroSD Card, XD - Picture Card, SmartMedia, and FP Memory.

Power:

Digital cameras consume a lot of power, which is supplied by powerful, small in size batteries. Batteries are broadly divided into two groups, namely, off - the - shelf and proprietary. Off - the - shelf batteries are like AA, CR2, CR - V3, AAA, and RCR - V3. They are lithium - ion ( Li - Ion ) or Nickel metal hydride ( NiMH ) batteries. Standard AA non - rechargeable alkaline batteries either do not work or work for only a very short time in most cameras.

Proprietary batteries are built as per the manufacturer`s custom specifications and are usually available as aftermarket replacement parts. Generally, lithium ion batteries are widely used as proprietary batteries for digital cameras.

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