PCs & Mobiles Forum - SD Memory card classes? - Page 1

yes, it's speed, higher number is faster. For example my camera says if filming video to use at least a class 6. For photos it's probably less important, depending on your camera etc.

http://en.wikipedia.org/wiki/Secure_Digital#Speeds

Quote:
admars says...
yes, it's speed, higher number is faster. For example my camera says if filming video to use at least a class 6. For photos it's probably less important, depending on your camera etc.
If you shoot 6fps upwards then it is equally as important to have a higher class card. For instance aircraft, car sports, motorbike sports, birds & even baby's, the more frames you can record in a second of something moving quickly, the better the chance of at least one of them being any good.

thanks for the reply folks.
I got a Nikon D90 so wanted to make sure I got the right kind of memory card to do the job.

On a related note, I got a card for my camera which was supposed to be fast enough, but I would get errors every few shots whilst it saved, obviously not good! So avoid cheap brands, stick with something reputable.


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Quote:
Rob Shepherd says...

On a related note, I got a card for my camera which was supposed to be fast enough, but I would get errors every few shots whilst it saved, obviously not good! So avoid cheap brands, stick with something reputable.
I bought a fast Sandisk card from a reputable dealer, it turned out to be a 'slow' copy. The retailer sent me another 'real' Sandisk card & told me to keep the other one which I use as a third in the queue spare.

Every now and again tech sites do reviews of cards, shows how bad some of them can be, even sometimes by reputable makes like Sandisk

I think there may be a lot of counterfeit cards on the market, and even reputable retailers can be taken in by crooked wholesalers.

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