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SDHC Memory Card
Video &
Digital Cameras that completely make
use of a removable SDHC memory card
are among the fastest growing markets in
electronic products. Up to just recently
video &
digital cameras could just use
SDHC storage cards for still
images. In older models, hard disk
drives, DVD, as well as tape drives were
usually the gadgets employed to store
video.
"SD" stands for Secure Digital. "HC"
stands for High Capacity. Aside from
Sony, all other brands use a
SD or
SDHC memory card with their
flash memory camcorders.
Sandisk, a major manufacturer of
flash storage cards, has even begun
promoting certain
SD and SDHC flash memory
cards as "video" cards.
All flash memory cards really aren't
created equal. Regardless of whether
it's branded a video card or an
SDHC memory card, there are some
dissimilarity among SDHC memory
cards you should be familiar with before
buying one.
SDHC Memory
Card Interoperability
A camcorder which says it functions with
SDHC memory cards always works
using an
SD card too; on the other hand,
it does not apply the other way around.
If the camcorder declares it works with
SD cards, then that is all it
works with; it cannot be utilized using
a
SDHC storage device. That is the
exceptional scenario. The majority of
modern video cameras can work with both.
A number of the cheap video cameras will
possibly not handle all
SDHC memory card capacities.
Just because your camcorder is SDHC
well-matched doesn't suggest it
functions with capacities in the higher
capacities. You will have to check your
manual to be sure it functions with
16GB or
32GB SDHC cards.
SDHC Memory
Card Capacities
SD memory cards max out at 2GB of
storage size. An
SDHC storage device can vary
from
4GB to
32GB in capacity. More capacity
means you'll be able to hold more video
and photos. If you have a high
definition camcorder you'll need to get
an
SDHC memory card. If you have a
standard definition video camera you
could probably make do using an SD flash
memory card.
SDHC Memory
Card Classes
Slow SD or SDHC memory
cards are possibly not capable to keep
track of the large volume of data a high
definition digital video camera
can feed into it. If the
SDHC flash memory card is just
too slow your video camera will not be
equipped to record anything.
To better understand this, an
SD or
SDHC memory card is assigned one
of four classes to indicate its lowest
speed: classes 2, 4, 5, and 10. The
higher the class, the faster the flash
card is. The class represents the
absolute minimum number of megabytes per
second (MBps) of the card; the rate at
which it can accept and store video
recording data. Class 4 is rated at 4
MBps, class 6 is rated at 6 MBps, etc.
You can expect to pay a correspondingly
high price for a high class numbered
SDHC flash card.
Quite often the exact speed of the
SDHC memory card is greater than
its class rating. In addition, video
camera makers, and makers of other
SDHC based gadgets, can design
devices which require faster data
transfer rates than the nominal rate
indicated by the class designation.
Because of this it is best to think of
class as a broad classification for
price comparison purposes, however, you
should consult the particular
specifications of your device before
purchasing a specific
SDHC flash card. Don't depend
solely on class.
Some manufacturers list the speed of the
video camera plainly outside the box
while others might stuff it into the
fine print of the documentation.
Wherever it is, it is best to consult
this important specification before you
buy a SDHC flash card.
If you have a standard definition
camcorder, either a
SD or SDHC flash memory card
of class 2 speed ought to do the task.
The best quality video you can record
works nicely using this class of
SDHC memory card.
Your best option for a high definition
video camera will probably be a
class 6 SDHC flash card.
A class 10 SDHC flash card should
perform, based on how tolerant to
specification limits your video camera
and
SDHC memory card are designed.
Make certain your camcorder can go that
fast before paying the extra money it
costs for a
class 10 flash memory cards.
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