What are the three elements of photography?

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

1, aperture

Aperture is the size of the aperture on the camera lens. The aperture is represented by f, and the value after f is the aperture value. The larger the aperture, the larger the aperture and the greater the exposure in the same time unit. But it should be noted here that the larger the aperture, the smaller the value after f, in other words, the smaller the number after f, the larger the aperture.

2. Shutter

Shutter is actually the time required for exposure. The faster the shutter speed, the shorter the exposure time and the less exposure per unit time. The slower the shutter, the greater the exposure per unit time.

3, sensitivity ISO

Sensitivity refers to the sensitivity of camera photosensitive elements to light. By adjusting the sensitivity value, the image in low light environment can show brighter effect. ISO values are usually divided into different values, such as 50, 100, 200, 400, 800, 1600, 3200, 6400, 12800, etc. Basically, every time you increase a gear, the ISO value will increase by a multiple of 2.

Photographic requirements include:

1. When shooting, the camera must be mounted on a tripod to prevent the camera from shaking. Try to keep the camera close to the subject, and be careful not to introduce unnecessary shadows.

2. The focal track can make the camera move along the X-axis and Y-axis in very small increments, and can accurately control the camera position and the depth of field of the picture. It is very troublesome to move the triangular bracket to the ideal position.

3. The cable release device is installed on the tripod. If you are not careful when pressing the shutter, the camera may still shake, so in order to avoid this situation, I suggest you use cable release.

4. When shooting, when the background of the shooting object is black, then the shot image can look the clearest.

5. Wrap it with a white card or aluminum foil to reflect the light on the object and illuminate the shadow on the object. Be careful not to let this card appear in the shooting range.