I was using a 8gb class 4 memory card which broke a few days ago i just got a new one and this is class 10 i've tried looking online to see what the difference is but i don't really understand :-/ also it says up to 23mb/s is this good?
Any help is appreciated thanks in advance!
The class refers to the speed at which data can be written to/read from the card. The higher the class the better.
Basically, if your camera's mechanics are such that it's physically capable of shooting, say, 5 frames per second continuously, but the "class", or data transfer rate, of your memory card is too low, then it won't be able to shoot that many, because it won't have finished saving the first one by the time it's ready to take the second one. Basically.
It also comes into play with recording video; too low a speed and you won't be able to record very long video clips.
I'm not up on current state of things but I think 10 is rather good. I only rock a class 6 in my Canon 550D and that manages to do HD video recording just fine, and doesn't slow down photo taking either.
Class basically means how quickly data can be written or removed to and from the card, the higher the class number, the quicker the data is written to it. So a class 10 is miles faster than a class 2 for instance. Helps with multishots and fast shooting mainly.
ha ha ha never thought that there is class thing in memory card because I always bought the cheapest one he he he. Thanks for the info and for this discussion.
It used to be that flash memory would advertise their maximum speed in multiples of the speed of a CD drive, e.g. 66x, 150x, etc. SD cards introduced classes, which tell you the minimum write speed, where Class N means at least N MB/s. So for your class 10 card, the manufacturer is claiming that you'll get at least 10MB/s write speed to it; it looks like yours claims to be able to go even faster.
The funny thing about SD 'classes' is I still don't think there is a standard definition... even the read/write speeds where open to interpretative results...
23 m/s should do what you need... provided your camera can use it...
make sure if it is a type of SD card your camera can use... ie SDXC newist SDHC newer and SD good old faithful
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Basically, if your camera's mechanics are such that it's physically capable of shooting, say, 5 frames per second continuously, but the "class", or data transfer rate, of your memory card is too low, then it won't be able to shoot that many, because it won't have finished saving the first one by the time it's ready to take the second one. Basically.
It also comes into play with recording video; too low a speed and you won't be able to record very long video clips.
I'm not up on current state of things but I think 10 is rather good. I only rock a class 6 in my Canon 550D and that manages to do HD video recording just fine, and doesn't slow down photo taking either.
23 m/s should do what you need... provided your camera can use it...
make sure if it is a type of SD card your camera can use... ie SDXC newist SDHC newer and SD good old faithful
http://www.sdcard.org/developers/tech/speed_class/
http://en.wikipedia.org/wiki/Secure_Digital#Speed_Class_Rating