Do you use the photos you took with your iPhone? If you keep your masterpiece on your iPhone, you can lose it, transfer it for your friends or acquaintances to see, or transfer it to your computer for advanced processing. This is a photo that can only be used outside the iPhone.
Do you use the photos you took with your iPhone? If you keep your masterpiece on your iPhone, it's a loss, transfer it for your friends and acquaintances to see, or transfer it to your computer for advanced processing. Or just use it outside the iPhone.
As for “external use of photos”, you should notice that the share menu that appears when you tap the (↑) button in the photo app has similar options: “Copy photo” and “Duplicate”. If you translate English “copy” into Japanese, it is “duplicate”, so it is no wonder that “copy photo” is a function that makes photo duplicates?
"Copy photo" in the share menu is a function to temporarily save the photo data in the memory. It is exactly the same function as copy in PC copy and paste, and it is not duplicated. It is executed when you want to use the photo in another application such as a word processor. If you copy another data after execution, it will disappear from the memory.
On the other hand, “Duplicate” creates a clone of the specified photo. Since clones are created including various information (metadata) such as latitude / longitude and exposure / sensitivity at the time of shooting, they are often used for backup purposes before adding changes to photos.
Note that both copying and copying are digitally processed, so the data will be completely the same no matter how many times it is executed. Therefore, the capacity is exactly the same before and after copying / duplicating, and image quality does not deteriorate.