p7700 lag between raw shots

Started Oct 28, 2012 | Discussions thread
tomjar
Regular MemberPosts: 468
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Ultra II vs Extreme vs Extreme Pro card
In reply to tomjar, Nov 2, 2012

I just did the same test as before, now adding an old Sandisk Ultra II card to the mix. This card is supposed to be much slower than the other two. For jpegs, it hardly shows, for NRW and NRW+fine the difference is greater.

Test using three cards:

  • 4 GB Sandisk Ultra II (15 MB/s) class 4
  • 16GB Sandisk Extreme (45 MB/s) class 10
  • 8 GB Sandisk Extreme Pro (95 MB/s) class 10.

Shooting conditions were the same for all three: ISO 400, 1/50 s, f/2.0, auto WB, 4000x3000 resolution.

I measured:

  • shot-to-shot time in SINGLE SHOT mode by measuring the time needed to take 10 consecutive shots one after another for fine jpeg, NRW and NRW+fine jpeg.
  • burst-to-burst time in HIGH-SPEED BURST mode by measuring the time needed to take 4 consecutive bursts of 6 shots at 8 fps one after another.

SINGLE SHOT mode results:

  • Extreme Pro (fine jpeg): 16 s for 10 shots --> 1.6 s/shot
  • Extreme (fine jpeg): 17 s for 10 shots --> 1.7 s/shot
  • Ultra II (fine jpeg): 18.5 s for 10 shots --> 1.85 s/shot
  • Extreme Pro (NRW): 32 s for 10 shots --> 3.2 s/shot
  • Extreme (NRW): 36 s for 10 shots --> 3.6 s/shot
  • Ultra II (NRW): 47.5 s for 10 shots --> 4.75 s/shot
  • Extreme Pro (NRW+fine): 35.5 s for 10 shots --> 3.55 s/shot
  • Extreme (NRW+fine): 39.5 s for 10 shots --> 3.95 s/shot
  • Ultra II (NRW+fine): 53 s for 10 shots --> 5.3 s/shot

HIGH-SPEED BURST mode (6 shots/burst at 8 fps) results:

  • Extreme Pro (fine jpeg): 22.5 s for 4 bursts --> 5.625 s/burst
  • Extreme (fine jpeg): 23 s for 4 bursts --> 5.75 s/burst
  • Ultra II (fine jpeg): 24 s for 4 bursts --> 6.0 s/burst
  • Extreme Pro (NRW): 50 s for 4 bursts --> 12.5 s/burst
  • Extreme (NRW): 60.5 s for 4 bursts --> 15.125 s/burst
  • Ultra II (NRW): 86 s for 4 bursts --> 21.5 s/burst
  • Extreme Pro (NRW+fine): 62 s for 4 bursts --> 15.5 s/burst
  • Extreme (NRW+fine): 72 s for 4 bursts --> 18 s/burst
  • Ultra II (NRW+fine): 98 s for 4 bursts --> 24.5 s/burst
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