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These are available in capacities from 32GB to 2TB (maximum capacity,
up to 128GB available at the moment). However the Panasonic website
recommends cards up to 64GB only for use in the Panasonic Lumix
FZ200.
These new generation cards have a lot more
technological advantages for serious amateur or
professional customers, they have a much longer
data archival life (claimed up to 10 times longer than
SDHC), they incorporate power failure protection
which help to safeguard data loss and they have an
intelligent data write controller which varies the
sections of memory used within the card to prevent
premature failure through constantly writing to the
same blocks of memory. In addition the new cards
use an advanced MLC (multi level cell) technology
which increases the data write rate, can withstand
A SDXC
card
higher and lower operating temperatures and ambient magnetic and
static electricity fields and also things like x-ray machines and are also
more resilient to physical shock. These features come at a premium price
however if your business requires protection against image loss then this
investment is really worthwhile. For general use there is no real reason to
choose SDXC over SDHC, better to have a few higher capacity SDHC
cards in my opinion.
The other consideration apart from capacity is the speed at which the
card will write data to the memory structure. Universal standards use the
CLASS system. The higher the class number the higher the data rate the
card will achieve.
Panasonic specifies a memory card with a minimum class rating of 4 for
use with the Panasonic Lumix FZ200 if you intend to shoot video. If you
are primarily interested in shooting still images with this camera then you
may consider less expensive class 2 cards but the saving is very
minimal.
My recommendation is to use at least class 6 to ensure
you have more data writing speed capacity as some
cards do write slower than claimed on the label!
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