What the... Memory Card Speed Test with 1DsMkIII --> SURPRISE!

Started Aug 12, 2012 | Discussions thread
Hans Kruse Veteran Member • Posts: 3,398
Re: What the... Memory Card Speed Test with 1DsMkIII --> SURPRISE!

Earthlight wrote:

I tested once with my camera and I got only about 16,9MB/s with the 400X Transcend 32GB. Perhaps I am doing something wrong.

I was at ISO100 and with the lens cap on. The burst had 15 images and the flush time of 14,8 seconds was measured from the moment of slowdown until the LED went dark. The RAW files were only 16,7MB, quite noiseless and black, well compressed.

I wouldn't do it this way. Instead I shoot in real light but without refocus for each shot (I always have AF only on the AF-ON button).

I should try this with a SanDisk extreme. My dealer says they are superior both in speed and reliability.

Yes, maybe true, but from my experience you will max get a little over 20MB/sec and this is also what Rob Gailbraith measured. However the numbers are no longer on his website.

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Canon EOS 5DS
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