The difference between large aperture f4 and f16

The background blur effect is different and the light enters differently.

1. The large aperture f4 can create a shallow depth of field, making the subject more prominent and the background blurred. This is useful for portrait photography or shots where the subject needs to stand out. The small aperture f16 will produce a larger depth of field, keeping the entire picture clear. This is more common in landscape photography or shots where the entire scene needs to be sharp.

2. The smaller the aperture value and the larger the aperture, the more light enters the camera. In contrast, the larger the aperture value, the smaller the aperture and the less light will enter the camera. When using a large aperture of f4, the camera is able to receive more light, and when using a small aperture of f16, the camera receives less light.