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UPDATE: May 13, 2010
I was contacted by an Amazon shopper named Rolla Gravett. He purchased a Transcend class 6 card that could maintain the 4.5fps to 100 shots. It could be a fluke but in the interest of relaying the facts, I'm letting you know that he offered video as evidence of this feat. Neither my Transcend class 6 card or class 10 card will do this.
Please let me know if anyone else has had this observation.
Repost 10-28-09
To respond to a request, I've changed the video today and included the test shooting in Raw mode. As you can see I'm not getting the 4.5FPS that I got in fine mode. This was about the same time that I shot 100 images in fine mode. Thank you for your suggestion. I got 56 images in just under 24 seconds. On my Transcendclass 6 card I got 25 shots in the same mode/time. My Transcend Class 10 card captured 37 images. In my opinion this is a much better demonstration of the card's write speed.
I have an Nikon D90. I purchased the 8G San Disc Extreme III card 30MB/S and a Transcend 16G class 6 card at the same time. The San Disc Extreme 3 card is incredibly fast. I get 100 pictures (4.5 frames per second) at fine resolution before the camera slows to buffer in 24 seconds. The Transcend card gets 17 photos on the same settings then pauses to buffer and only delivers 25 shots in 24 seconds. The Transcend Class 10 card delivers 66 shots in 24 seconds.
If you have the camera that can take full advantage of this write speed, this fast card is worth the investment. No more cringing while I wait for my camera to clear its buffer so I can take more pictures.
I like to shoot at 4.5 frames. It gives me a lot to pick through when I edit, but a lot can happen in a fraction of a second that can make a photo good or bad. Having the capability to hold down the shutter release and rattle off large bursts of photos is important to me.
I know this test is boring but it is a real world use test. I don't work for San Disc and would consider any other card with this write speed. A word of caution, all class 10 cards are not rated at 30MB/s, they only need to read and write at 10MB/s to be called class 10.
I have found that 8G is a good size for SLR Photography. In my opinion bigger cards are putting a lot of eggs in one basket.
If you have any questions or criticism please comment. I'll redo/repost the test if you can think of a way to make it better.
JPG fine Res Test at this link
Sandisk SDSDX3-008G-E31 8GB Extreme III SD Card 30MB/s (RETAIL PACKAGE)
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