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D800 buffer size - reality?

Ferguson

Cape Coral, US
5747 posts

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Ferguson Silver Member Fellow Ribbon awarded for the generous sharing of his high level expertise in the spirit of Nikonians Nikonian since 19th Aug 2004
Sat 24-Mar-12 06:41 PM


Page 436 of the manual says with 14 bit lossless compressed you get 17 buffered shots.

I have a D800 now in my hands, with a 60MB/s card (ok, that's what it says, it may be slower -- Sandisk Extreme 32G -- not a real fast card).

On manual, 14 bit, lossless compressed shooting at 4fps I can only shoot 16 shots before it slows to a crawl.

The buffer display when idle shows 12, not 17. I thought that might be (as with card capacity) the most pessimistic setting, but I now think not.

At 41 MB files (from the manual, haven't looked) the buffer should be draining as it writes to the card, so I should get MORE than 17 the buffer reportedly holds, like maybe 21-24 depending on the real speed.

Now if it were really 12, the 16 is approximately right to allow for card write time.

This was on manual, auto-focus off, no VR, 8000th, auto-iso off.

That's really a bit disappointing. Am I missing something?

Has anyone else tried to see how big the buffer really is (and what yours says at idle)?

Comments welcomed on pictures: Http://captivephotons.com

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