Choosing an SD card for video
As a stills photographer I’m used to grabbing the nearest memory card, popping it in the camera and shooting photos. As long as there’s enough space on the card I’m good to go. But when it comes to capturing video with your DSLR, life’s not that simple.
I learnt the hard way that not all memory cards are the same and even the ones that claim to be suitable for HD video can let you down. Grab the wrong card and you’ll be greeted with a message like this. “Movie recording has been stopped automatically”and basically when you see this it’s game over. So here’s some tips for choosing the right memory card for video.
Compact Flash or SDHC?
If I have the choice then I’d use compact flash cards every time. Generally speaking compact flash cards are faster, which is always good for video and from my personal experience I can testify to their durability too. Having said that, SD cards are now the norm for new cameras and there’s no going back. So it makes sense to invest in decent SD cards if you’re likely to be upgrading your camera body in the future.
The Class 10 rule
When it comes to choosing an SD card for video there’s one golden rule… It absolutely must be rated as a class 10 card. DSLR’s churn out video at an incredible rate and all that data has to be written to the card, a class 10 card can do that at least 10 megabytes per second.
Faster then fast 
Good as the class 10 rule is, it doesn’t always work. Take a close look at these two cards from Kingston. They’re both rated as class 10 but one is faster then the other. The card on the left is capable of shifting 15mb of data per second where as the card on the right shifts a whopping 35mb of data per second.
From my experience both cards will work just fine at recording DSLR video but when you combine the faster card with a USB 3 reader, you’ll be able access the data far faster.
I’d recommend the left card is the minimum you should relay on for video, where as the card on the right is my preferred card.
Size matters.
For still photography an 8GB card will usually do me just fine for a days shooting but when it comes to video that same 8GB card will be full in just over 20 minutes. So unless you only want to shoot short clips you’re really going to need a big card. 16GB cards represent good value for money but for me 32GB cards are the way to go.
Just purchased a Sony Handycam for my holiday next year, now I know what card to buy Thanks..
When you think of a SanDisk Extreme Pro CF or another form of SD card, normally your thoughts go to phones, cameras and MP3 players as that is what we most regularly use SD cards with. However this is a very limiting view of their use, and they can actually be used with a range of other devices that you might not have considered. Here we’ll look at some of the more different gadgets that can use a SanDisk Extreme Pro CF – some of which you might own (or invest in in the future) but not really of thought of, and others of which you may not be as likely to use.`
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