Canon has announced the Canon Rebel XSi (EOS 450D outside the U.S.A.); the sequel to my beloved Rebel XTi (EOS 400D). While there are many revisions, the one that sticks out the most is the switch from CompactFlash to Secure Digital memory cards.
CompactFlash is 14 years old; it is the oldest and largest memory card format still in use. It owes its longevity to having the controller in the card instead of the …
For years, I’ve been hearing this wonderful argument: don’t put all your eggs in one basket; it’s better to have several smaller memory cards than one large one, so that if one fails, you’ve only lost a portion of your prized photographs, instead of all of them.
Seems to make sense, no? Distribution and redundancy are the core of safe computing, so we take this argument without question, spending extra to get four 512MB cards, even if the best bang for our collective buck is at 2GB. Yet do we ever stop to think that the entire concept is flawed?
The multi-card …
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