Thread: CF Card
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Old 27th March 2011
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Re: CF Card

Originally Posted by jamie allan View Post
The number quoted (say 300) - as opposed to the actual speed (say 30MB/s) is actually simply a multiplier. It goes back to the old days of CDRoms where they initially could only transfer data at 150kB/s. So a card which states 300 actually runs at 300 X 150k(or 0.15M) = 45MB/s.

So :

133 = 20MB/s roughly speaking
200 = 30MB/s
233 = 35MB/s
300 = 45MB/s
Thanks that helps, as i say i think it maybe the write speed buffer of the camera being an E420, maybe i should have looked at that first
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