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Are D4 cards slots written Simultaneously or Sequential...

Ferguson

Cape Coral, US
5751 posts

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"RE: Are D4 cards slots written Simultaneously or Sequentially?"

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
Sun 17-Mar-13 03:31 PM


I have done a lot of timing on the D800, and the time to write is approximately additive. Whether that means the cards are written sequentially, or simultaneously but somehow much restrained I do not know, but the effect is as though sequential.

The D4 I did less testing on, but it appears to be the same. I didn't worry about the D4 much as the huge buffer is hard to fill up even in backup mode with a slow CF card.

But it's a serious issue with the D800 if you happen to pick a big-but-slow card for both slots in the D800. I settled on two medium speed cards, and think that's a good compromise. I've got something the same in the D4 (the older XQD series plus a 60 MBS CF card, and have almost never hit the limit in backup mode (which I normally shoot in -- I mean why not, if you have two slots).

Linwood

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

A general, generic topic Are D4 cards slots written Simultaneously or Sequential... [View all] , JECoutre Gold Member , Sun 10-Mar-13 04:23 PM
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