Scott Stoness Offline Upload & Sell: On
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Just tried it at manual 1/1250, iso 1250 dim scene on my screen with bright spots underexposed.
My 5diii, lexar 1000 64gb takes about 24 before slowing down slightly and then it takes about 4s for the buffer to clear when I stop. If I keep it pressed after 24, it slows down to about 2/s, after a quick pause and then back up and slowing again until about 55 and then slows down even further, but carries on forever at a little under 2/s, with brief stutters and accelerations. Beyond 24, I am guessing at the speed. 117raw pics in 30s before I stopped.
My experience from experimenting was that the number in burst did not vary greatly between a fast cf card and the fastest cf card but the burst clearing was about 1/3 of the time of the lessor card, which is critical with wildlife. But 13 sounds low.
[When I tried same with my sd card it did 14 before choking and stopping and then took 15s to clear. 400xdsxc 10 lexar. It actually stops shooting rather than slowing at 14.]
[Just re-read your post and realized you were talking about the buffer as indicated in the viewfinder capacity. Mine says 13 on 5d3 and 22 on 7d. Its 13 on 5diii regardless of sd or cf card. But experience is way higher, so it is clearing the buffer as it fills the buffer, and the 13 must be how many it would take without a card just to the buffer.]
My advice is buy a lexar 1000 64gb. Why have a $2500 camera with 6fps and the ability to burst 24, and limit it to 18 or so with 10s to clear when you can get 24/5s clear. And if you are shooting 6fps, why not a big card. I have not lost any data yet with this strategy.
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