Buffer vs write speed a 30 second test

Started Feb 24, 2013 | Discussions thread
JimPearce
JimPearce Veteran Member • Posts: 9,153
Here is what IR says about the D300s Stuart...

"0.14 second for the first 17 frames, then slows to an average of 0.61 second (1.64 fps) for subsequent shots, with 31% variation in cycle times when buffer is full." "**Same speed and buffer depth with SanDisk Extreme Pro card, but clears in 7.6 seconds, and post-fill capture rate is 0.48 second (2.09 fps) with 43% variation." This is with a 90 MB/sec. card. Buffer clearing time is 7.6 seconds. So 2.38 seconds for the initial burst, and then another 58 shots. That's 75 shots. There's a pretty big discrepancy here Stuart, suggesting to me that your files must have been very compressible.

Anyway, it's both the slow frame rate and the variability after the buffer is full that lead me to take my finger off the trigger.

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Jim

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