![]() ![]() If you’re shooting RAW on a 24MP camera, you’ll only get about 28 photos on a 2GB card. ![]() Storage is dictated by file size, a factor of file type and resolution. Here are some considerations for memory cards for photographers. This doesn’t mean that you’ll be fine with the slowest, cheapest card. If you’re only shooting still photos, you’re lucky in the sense that you generally won’t require the most expensive memory cards. Putting it all together: How to choose the right memory card Photographers Know which slot is which for the appropriate memory card. One may be a UHS-I slot ideal for photos while the other may be a UHS-II slot ideal for video. Note that many cameras today have two SD card slots. Know what kind of minimum card your device requires. This is called backwards compatibility the cards will work, but you won’t get expected performance. You can use a UHS-I class C6 card, but your video may show artifacts and have dropped frames. Your device may require a minimum standard in order to get the highest performance out of it.įor example, if your camera records 4K video at 100MB/s, the instruction manual may note that you require a UHS-II class U3 card. This requires a UHS bus.Īnnotations for a Class C10 and Class U3 & C10 cards Device compatibility The number next to the V will be either a 6, 10, 30, 60, or 90, and specifies the minimum MB/s sequential write speed. It’s the number next to the “V” on capable cards. “Video Speed Class” is a newer speed class designed for higher-resolution video recording.This requires a UHS-I, II, or III data transfer bus. U1 has a sequential write speed of 10MB/s while U3 has a sequential write speed of 30MB/s. It’s the number in the “U” and is either a 1 or 3. “UHS Speed Class” defines the minimum sequential write speed over the Ultra High Speed bus.These numbers correspond to the minimum number of MB/s sequential write speed. “Speed Class” is the number in the big “C”, and will be either 2, 4, 6, or 10.There is a difference between memory card bus speed and speed class. It has to do with technical details regarding data fragmentation that are above the scope of this article all you need to understand is which specification you’ll need. This specification becomes more important for videographers requiring a minimum constant write speed for video recording. This is the final specification that you’ll see in memory card names.
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