Why should not delete photos in memory card from camera?

If you own a camera, you’ll want to read this article. It’s written by a memory card expert and the marketing director of Lexar, a company that deals with memory card issues.

Most people just see a memory card as a piece of plastic or metal, but inside it there is a lot of “smart stuff”. There is flash memory, a controller, and more. The quality of the memory and controller determines the speed and quality of your memory card.

Here are some things to keep in mind when using memory cards in your camera:

Do not delete photos from the memory card directly on the camera:That is, don’t go through your photos and delete them one by one with your camera. A lot of people do this, even professional photographers, and it’s a bad thing. Cameras are amazing at taking pictures, but they’re not smart about managing the data on your memory card. Deleting photos from your memory card one by one with your camera is the quickest way to ruin your memory card. So, after you’ve uploaded your photos to your computer, format your memory card before using it again.

Format the memory card on the camera, not on the PC:Countless websites tell people to format their memory cards using a computer. But this is bad news. You should format your memory card using the same camera you take your photos with. For example, if you have multiple cameras, a Canon 1DX Mark II, a Canon 1DX, a Canon 5D Mark IV…, format the memory card in each camera that uses them. If you remove the memory card and format it in another camera, of course, everything will be fine. But that process can cause some problems. In short, it is not a good idea to remove a memory card from one camera and put it in another camera without first reformatting the memory card.

Please format the memory card after each shooting:It is a good idea to reformat your memory card after every trip with a bunch of photos. Once you have loaded your memory card and saved your photos, you should reformat it before using it again. This will keep the card “clean”.

Use a good card reader:Remember, memory card readers have smart controllers in them, just like memory cards. A bad memory card reader will cause the memory card to be damaged.
Don't let your memory card get too full: While most memory cards are great and have all the smart features, it's not a good idea to cram them to the point where they're completely full. The general rule of thumb is to only fill up to 90% of the card's capacity. The same goes for your computer's hard drive.

Do not remove the memory card from the camera or card reader while data is being written or read:If data is being transferred to/from the memory card and the transfer is interrupted, you may lose some or all of your photos. Don't always rely on the red light on your camera to tell you that data is being transferred. Wait a few seconds after the red light on the camera has completely turned off before removing the memory card.

If your camera has 2 memory card slots, write photos to both cards:That way, if one card fails, you'll have the other as a backup.

Buy a good branded memory card:remember, you are trusting the quality of your photos and memories to a memory card, and you will use that card many times, so be generous with your money and buy a good card. In the long run, it will be worth it.

Additionally, there are some very common misconceptions about memory cards below:

If the memory card falls into water, the data will be completely lost:This is not true. If this is the case, you probably should not continue using that memory card, just in case it is damaged. However, the data on it may still be recoverable.

Memory cards must be kept in the box:You don't need to always keep the memory card in the box carefully, this is not a problem.

Airport scanners can damage memory cards:In the past, X-Ray machines could damage film, but they pose no threat to the solid-state memory cards you use today.

Conclude:Memory cards are small but there is a lot of technology packed into this card, memory cards also hold many memories, moments that may never come again, so use them properly!

According to XHTT