Three elements of photography?

The three elements of photography are shutter, aperture and sensitivity (iso).

The shutter is the length of exposure. Simply put, it is to control the speed of taking pictures. The longer you take a photo, the more light you get, and the brighter the photo will be, and vice versa. You can see the camera shutter value, which is generally displayed as 1/xxx, indicating how many fractions of a second it takes to take a photo. You can raise the shutter value a little during the day (the value mentioned here is the denominator value) to facilitate snapshot, and you can lower it relatively at night. For beginners, it is not recommended that the shutter value be lower than 50.

Aperture is a numerical value determined by the camera lens. It's like a window. If the aperture is large, there is more light, and if the aperture is small, there is less light. However, its value is the opposite. A large number means less light, and a small number means more light. When you adjust the aperture value, you can look at your lens and obviously feel the change of aperture size. In addition to controlling the light, the aperture has a more important role, that is, controlling the depth of field, that is, the background of the photos you take is blurred. The smaller the aperture value, the more blurred the background, and the larger the aperture value, the clearer the background. Therefore, we usually use a large aperture (small aperture value) for close-up shots and a small aperture (large aperture value) for panoramic shots. It should be noted here that the photos taken with large aperture are easy to deform, so it must be controlled well when using.

Sensitivity (iso) is the performance value of the camera's sensitivity to light. The bigger the number, the more sensitive the camera is to light, and the more light there is in the photo. The smaller the number, the less sensitive the camera is to light, and the darker the photo light is. When adjusting the sensitivity, be careful not to adjust it too high, so there will be more noise in the photo and the photo will be unclear. What is the specific adjustment value? According to different camera performance, the general range is 100-800.