Bob Atkins Reviews Compact Flash Cards
Bob Atkins has published a great overview of compact flash cards from a Canon DSLR point of view, including the 8 megapixel Canon EOS 20D (pictured).
“As you can see, it really doesn’t matter much what speed CF card you use with the Digital Rebel or EOS 10D. The camera really can’t write faster than about 1.4MB/s no matter what the CF card speed is. Faster cards do give slightly better performance, but the difference is small. On the other hand, the EOS 20D and EOS 1Ds mark II can write much faster and can take more advantage of high speed cards. With these cameras the use of faster CF cards makes much more difference.”
Website: Bob Atkins - Compact Flash Cards