7D: CF Speed 133x vs 200x vs 400x

Started Mar 3, 2011 | Discussions thread
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DonCohen
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7D: CF Speed 133x vs 200x vs 400x
Mar 3, 2011

I just bought my wife a 7D and am considering larger capacity CF options: either 2 16gb cards or a single 32gb as primary, and an 8gb as back-up. The price difference between cards of different speeds is dramatic.

For those shooting Raw and HD Video, with the 7D, is there any practical difference in terms of filling and clearing the buffer, between these cards? Has anyone done any controlled comparisons?

I understand that transfer speed from the Card to the Computer might be slower, but this is less of a concern to me.

Is there any benefit or need to spend more money for the 400x cards, vs the 133x cards, for shooting in the Canon 7D?

Thanks.

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