Thursday, March 22, 2012

All About Memory Cards For Cameras: Advantages

By Rick Newman


Like all the other things digital memory cards for cameras come in all shapes and sizes. Compact and small these cards serve the basic purpose of storing images. A particular camera supports various numbers of cards through multiple card slots or by variations of a common format.

These chips are based on flash memory, a non-volatile form of memory that stores data without the aid of power. They have a large capacity of recording print-quality high resolution images. The card design and the capacities depend largely on the camera being used.

The most confusing aspect of the memory chips for cameras is their speed. Some manufacturers quote the rate of speed in MBPS while others just make use of the suffix 'x'. 1x is equivalent to 150kbps. In the SD media formats, card system is used. A class 2 card gives a minimum transfer rate of 2 mega bytes per second, and thus it is an easier method to classify speed.

The main types of memory chips are Standard Digital (SD). The majority of cameras record the images and movies in one or more varieties of SD memory card. They are small postage stamp sized chips and are cheaply available. Today they are being displaced by the SDHC format (HC meaning "high capacity").

This comparatively latest variant of memory chips has capacities from 4GB to 32GB, alongside a high speed and performance, despite keeping the same older dimensions. Another variety is the SDXC chips. These chips not too common have their capacities from 32GB to 64GB which is set to rise to a whooping 2TB in the coming couple of years. They are demanded in high definition (HD) video capture mainly in the DSLRs and other HD- cameras.

The professional DSLRs still have the support for the Compact Flash chips even when most of the DSLR cameras have upgraded to the SD formats. These cards are much stronger and larger than SD chips and have an edge over them in adverse conditions.




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