Just in time for the flagship Nikon D4 SLR,
Sony has announced a XQD flash memory card--the first example of a new
format developed with better speed and capacity than its CompactFlash
predecessor.
(Credit: Sony) |
Most devices these days use smaller SD Card technology, but high-end SLR
cameras from Canon, Nikon, and Sony still keep CompactFlash alive for
performance and capacity reasons. The new XQD format follows in the same
direction, trying to keep ahead of SD by borrowing the PCI Express
(PCIe) high-speed serial communications link interface from computers.
Sony announced two models of the card, the 16GB QD-H16 card for $129.99
and the $32GB QD-H32 for $229.99. The cards are scheduled to be
available in February.
And so customers can transfer data off the cards without having to plug
their cameras into a USB port, Sony also announced the $44.99 MRW-E80
card reader that plugs in with USB 3.0 and the $44.99 QDA-EX1 adapter
that plugs into laptops with ExpressCard slot.
The cards can read and write data at up to 125MBps. That's not necessarily faster than CompactFlash--Lexar's new 1000X CF cards
read at 150MBps and write at 145MBps. But though faster CF cards helped
photographers, cameras rarely kept pace with the full card speed.
Notably, though, it looks like XQD will be an improvement here: On the
Nikon D4, Sony's XQD cards can keep up with 100 frames of shooting in
the camera's raw photo format. Given that the camera can shoot at 10
frames per second with autofocus engaged--a feature sports photographers
love--keeping up with shooting bursts and clearing the buffer for a new
burst is important.
XQD will be able to exceed 2 terabytes capacity eventually, according to
the the CompactFlash Association, which developed the format.
Second-and third-generation versions of PCIe double and quadruple
transfer speeds to 250MBps and 500MBps. The initial cards use the
first-generation interface, but PCIe provides for backward compatibility
so that newer devices will be able to use older XQD cards.
(Credit:
Sony)
The XQD cards don't fit into CompactFlash slots and vice-versa. The XQD cards are smaller than CF but larger than SD cards.
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