How good does my SD card have to be? (Canon 650d)

Started Feb 6, 2013 | Questions thread
R2D2 Forum Pro • Posts: 17,166
That's bad info...

Illegal Mexican wrote:

45 MB/sec is only the read speed. For taking pictures/videos, the write speed is what's important. And for both SanDisk Ultra and SanDisk Extreme, they are both Class 10, so they both write at 10 MB/sec.

SanDisk rates their 45 MB/s Extreme cards as up to 45 MB/s Read and Write.

My 45 MB/s Extreme writes at about 35 MB/s in my T4i. My 95 MB/s Extreme Pro writes at about 40 MB/s.

I tried a 20 MB/s Ultra in my T4i and it was a DOG compared to these cards.  My camera felt very sluggish.


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