Why did the new photo taken by the mobile phone suddenly disappear?

Maybe there is a virus in the mobile phone, and the hidden pictures are stored in a folder because of the virus, but this folder can't be found on the mobile phone. The recovery method is as follows:

1, the new photo taken by the mobile phone suddenly disappeared. We just need to clean up the data. Open phone settings, and then click Application Management.

2. Find the gallery in Application Management, and then click Enter.

3. Then, we click Storage in the application repository.

4, and then clean up the data. Note: The pictures in the gallery will not be cleared here.

Extended data usually means that the photo specifications will be expressed in inches, which is different from the diagonal length of products such as monitors. "A few inches" in the photo refers to the length of inches on the long side of the photo. For example, a 6-inch photo is a 6×4-inch photo.

There is also a commonly used method to indicate the size of a photo in the world, which is to take the integer value of the short side of the photo and add the letter R to indicate it. For example, a 6-inch photo, the specification is 6×4 inches, which is 4R.

In addition, regardless of the number of pixels of a digital film, only look at the number of pixels on the long side, 1200 is 5 inches, 1400 is 6 inches, 1700 is 7 inches, and so on. 1 inch (in inches) =2.54cm When we say x inches, we mean the long side of the photo. For example, 5 inches means the photo is 2.54x5= 12.7cm, 12 inches means 2.54x 12=30.5cm, and 8x 12 means the long side is 2.54x12 = 30.5cm. ..

3R refers to paper, 3R is 89MM, 5R is 127MM, usually 3R refers to 3*5, which means 5 inches, and 5R refers to 5*7, which means 7 inches. R represents a rectangle, calculated on the shortest side.

Most of the photos taken by 135 machine are developed to 3R or 4R or above. If the bottom of the 6x7 machine of 120 machine is developed into a 3R photo, it will not be "3 inches, 5 inches", but it will be "3 inches x3.5 inches" in proportion, which is also a 3R photo, and there must be 3 inches left.

Another example is the photo taken at the bottom of 120 Hasselblad 6x6, because its negative is square. If you want to take a picture of a square, such as "3 inches by 3 inches" and "5 inches by 5 inches", we don't call it 3R, but 3S or 5S, and s stands for square (English is square).

References:

Picture _ Baidu Encyclopedia