All right, you have your camera, you have your lenses; but now you need something
to record on. So let's talk memory cards.
Hey everyone, Camber here back with you in Mississippi, and today we were talking
about which memory cards are best for video; and if you're new here, this
channel is all about teaching you how to use your camera to make good films so
if that's you, consider subscribing. Now there are many different types of memory
cards. You have SD cards, Compact Flash, Micro SD, CFast cards. So what's the
difference? Well, SD cards and Micro SD cards are basically the same except SD
cards are used in more consumer level cameras whereas Micro SD cards are used
in smaller cameras like GoPros or in drones. Compact Flash cards are even
faster and are used in more expensive cameras like the 5D Mark 4; whereas CFast
cards are some of the fastest you can get and are used in more pro level
DSLRs and cinema cameras. However, since most cameras have ports for SD cards,
we're going to use that for our example. Now as far as hardware is concerned, the
only difference between SDHC and SDXC cards is different filing systems which
result in higher memory capacities. The SDHC cards can hold up to 32 gigabytes
whereas the SDXC cards can hold up to 2 terabytes; although you won't find 2
terabytes out on the market yet. So the first thing we're gonna look at on these
cards is the number on the top left which is the maximum read speed of the
card, but before we do we need to understand a few things first.
So, 8 bits equals 1 byte, and therefore 8 megabits equals 1 megabyte. Megabits little b,
megabytes big B. It's important to know the difference when we get into
understanding read and write speeds because people often see that their
camera cords at 100 megabits per second, little b, and think, "Oh, I need a
card that records at a hundred megabytes per second." Big B. When actually 100
megabits per second equates to 12.5 megabytes per second. Now manufacturers
don't always advertise their write speeds so unless the card's write speed
is explicitly stated, then any number that you see in the top left of your
memory card is going to be card's maximum achievable read speed. And
this maximum achievable read speed comes more into play for photography because
when you start doing this... the maximum achievable speed of the card will allow
you to take more shots without having buffering issues. But in video we care
about sustained speeds because if the sustained speed drops below the video's
bitrate, you'll start getting dropped frames in your video. So the next number
we'll look at represents the memory capacity of the card, which in this case
is 64 gigabytes. And what size card you'll need really depends on how much
you plan on shooting at once. For example, if you're gonna be shooting a full
wedding at a hundred megabits per second, you'll want a larger capacity card
because you'll fill up a 32 gigabyte card at that rate in about 35 minutes.
Another thing to consider is spreading your footage among multiple cards so
that if you do have a memory card failure you won't lose all of your
footage. I like to just use one large card so I'm not switching out cards and
don't risk losing one; however, I haven't experienced any memory card failure yet.
The rest of the numbers you see on the right side of the card are various ways
of representing the speed class rating of that card. The letter C with a 2, 4, 6,
or 10 enclosed within it represents a minimum sustained write speed of 2
megabytes per second for a class 2, 4 megabytes per second for a class 4, and
so on and so on. However, it's important to note that this is the minimum rate,
not necessarily the actual rate. And then you have a U with a 1 or a 3 inside of it,
and this represents a minimum sustained write speed with U1 being 10 megabytes
per second, and U3 never slower than 30 megabytes per second. So U1 is identical
to class 10 in that both of them are certified to never write slower than 10
megabytes per second; however, the difference being that the U card is
designed for SD cards that use a UHS 1 or a UHS 2 bus. Non-UHS cards max out at
25 megabytes per second, UHS-1 cards max out at 104 megabytes per second,
and UHS-2 cards max out at 312 megabytes per second. The UHS-2 cards
have a second row pins that allows them to achieve this
speed, but if your device doesn't have the second row of pins, the card will
revert to UHS-1 speeds. There's also a V speed that's being added to memory cards
now, and the SD Association created these video speed class ratings in order to
identify which cards are capable of 8k, 4k, 360, or 3D video. The V speed is
similar to the U speeds in that it represents the minimum sustained speed
in megabytes per second that the card can handle. Now, not all cameras are
compatible with these higher speed class ratings so you'll want to get into your
manual or look up online and see which cards are compatible with your camera.
4K is becoming the new standard, and camera specs are increasing rapidly. I don't
like having to upgrade things like memory cards so I like to buy the best I
can possibly get so that I'll be able to support future larger video formats
without having to buy more support equipment. I have links down below for
what I use for my HD and 4k video, and I suggest getting the fastest card that's
compatible with your camera so that you never have any issues with dropped
frames in your videos. And that's all I have for memory cards so if you made it
this far, hit that thumbs up and let me know down
below if you have any more questions about memory cards. Go ahead and
subscribe if you haven't and remember that the only way to get better at
something is to practice. So get out there and film something. See you soon.
For more infomation >> KYOTO - RIOT 💔 [MUSIC VIDEO] - Duration: 2:45. 
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