kfreels wrote in post #13590209
Not arguing here. You probably know better than I do. But help me to understand.....
Suppose the buffer of the 7D is 15 RAW shots at 50M each. I shoot at 8fps, but I write out of the buffer at 50MBps. At the end of that two seconds haven't I written 2 shots to the card so I have room for 2 more in the buffer meaning I could get another 2 shots in? At 10MBps you would only have 2/5 of one shot written out of the buffer at the end of two seconds. I know it isn't a huge difference, but is the difference really zero?
Not arguing here. You probably know better than I do. But help me to understand.....
Suppose the buffer of the 7D is 15 RAW shots at 50M each. I shoot at 8fps, but I write out of the buffer at 50MBps. At the end of that two seconds haven't I written 2 shots to the card so I have room for 2 more in the buffer meaning I could get another 2 shots in? At 10MBps you would only have 2/5 of one shot written out of the buffer at the end of two seconds. I know it isn't a huge difference, but is the difference really zero?
Yup, it really is. And I was quite surprised when I carried out a test with three cards, 60MB/s, 45MB/s and an ancient 1.5 MB/s card. For all three the number of raw images to fill the buffer was the same. The results are here, somewhere on POTN. But I've an Xmas party to prepare for.
Edit:
Uuurgh. brain hurts!
Here link for experimental results.
