I use Fujifilm X100, X-Pro1 and X-E1 cameras, in which the speed of the memory card has a decisive influence on liquid service. The cameras can fully exploit the speed of the card - but they also need. Previously, I had used 10 of the X100 a normal class - the use by the Sandisk Extreme Pro SDHC card brought an enormous improvement. Saving the pictures - especially when working with RAW files, or in burst mode - is almost twice as fast as in a normal class 10 card. Result: Much smoother operation; The camera responds more directly to user actions immediately after taking a picture.
Recommended.