Executive Summary about Digital Memory Cards by Ashish Dwivedi

digital cameras memory

SDHC (Secure Digital High-Capacity) are new Flash memory cards based on the SDA (Secure Digital Association) 2.00 specification. SDHC provides removable memory storage for compatible digital devices, including cameras, camcorders, PDAs, MP3 players and more SDHC cards guarantee a minimum sustained data transfer speed, not a maximum speed.

Class 2 devices guaranty a minimum DTR of 2 MB/sec
Class 4 devices guaranty a minimum DTR of 4 MB/sec

Class 6 devices guaranty a minimum DTR of 6 MB/sec

SDHC Cards comes in different capacities ranging from 4 GB-32 GB. Please see the highest capacity supported by your device. SDHC logo on your device does not neccesarily means that your device will support all the capacities that are provided under SDHC cards. Current SD cards complying with Version 1.01 and Version 1.10 use either the FAT16 file system, whereas Version 2.00 uses FAT32.

Ideas On Memory Cards For Your Digital Camera

Executive Summary about Digital Memory Cards by Victor Epand

The primary difference between a regular SD (Secure Digital) and a SD/MMC card is that the MMC card lacks a locking tab and is short by one electrical connection on the back. The regular SD cards have 8 pin slots; the MMC card only has 7. By far, it is worth the 15-20% premiums placed on the faster cards. On some cameras, you might even run into problems with the camera not “seeing” the memory from time to time when you turn the camera on.

I purchased a slow card and used it while wandering around. Only the camera wasn’t working – the memory card had produced an error.

A follow-up call with the manufacturer pretty much convinced me never to buy cheapo 3rd party slow flash card memory again. According to the tests done by Digital Photography review, XD cards are faster than Compact Flash cards on S9000.

This buffer is a small but very fast memory where the camera stores the pictures temporarily while the flash card is busy writing the previous picture. The buffer is only used while writing pictures not when reading them from the card. There are many other factors involved as your camera speed (when reviewing pictures in camera) or your computer speed (when downloading). Then pick any of their middle level cards and you’ll be very satisfied.

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