Why do people use SD card on camera

Now, there are more and more friends who own digital cameras. Some people buy SLRs, some people buy micro single cameras, and some people buy card cameras, such as Sony ZV1 or Canon G7X Mark III, mainly the body Small and portable for shooting Vlogs.

No matter what kind of digital camera, if you want to take pictures or shoot videos, you must have a storage device - a memory card. There are many kinds of memory cards, such as CF card, memory stick, SD card, XD card, MMC card, MS card, TF card, MicroSD card and so on.

However, the most common types of digital cameras are SD cards and MicroSD cards. At present, the storage of most digital cameras is SD card. There are also different types of SD cards, the most important of which is the difference in capacity and read/write speed. Needless to say, the difference in capacity is understood by everyone. In terms of read and write speed, it is divided into three levels: UHS-I, UHS-II, and UHS-III. The higher the number after UHS, the faster the interface supports. The higher the speed, the faster the read and write speed.

For ordinary still photo shooting, the requirements for capacity and read/write speed are not very high. Most low-speed SD cards on the market can meet the shooting requirements, but if you want to shoot high-quality video, or For high-speed continuous shooting, you need to use a high-speed SD card, and to shoot high-quality video such as 4K/30P, especially some super-captured high-bit rate videos, the speed and capacity requirements of the SD card are relatively high, because shooting High-quality video has a very high bit rate and requires high read and write speed support. Secondly, when shooting high-quality video, the capacity is also large and requires the support of a large-capacity SD card. Otherwise, the storage space of the card will run out. You will miss a lot of great moments.

In fact, most of the small partners now have high-speed continuous shooting and high-quality video shooting needs. so when choosing an SD card, it is necessary to choose UHS-III with a relatively high read and write speed, that is, the U3 series. If your SD card read and write speed is too slow, your SD card will stop working, or lose a lot of content, and stutter badly when shooting video and high-speed bursts.