Introduction to the basic knowledge of photography parameter setting

The basic knowledge of photography parameter setting is as follows:

1. International Organization for Standardization

ISO, also known as sensitivity, is used to adjust the camera's sensitivity to light. When the night is dark, the higher the ISO, the brighter the photo, and the lower the ISO, and vice versa. However, ISO also has disadvantages. The higher the value, the stronger the graininess, and the lower the value, the finer the picture. (But if you want to pursue the film effect, you can deliberately raise it. )

2. Aperture and depth of field

Aperture is a common adjustment method in photography. Aperture is simply a door to let light in. Light is like a person. The larger the aperture, the more light enters at the moment when the shutter is opened, otherwise the less light enters. Opening the aperture in dark light can capture more details, and it can be appropriately reduced in strong light. When it comes to aperture, you have to mention depth of field. The larger the aperture, the shallower the depth of field, the smaller the aperture and the deeper the depth of field.

3. Shutter speed

Shutter speed is the speed of time when we shoot. The unit of shutter speed is seconds. Or in most cases, a fraction of a second. The fraction representing the shutter speed is generally expressed by 1/xxx, and the higher the denominator, the faster the shutter speed. For example,11000 is much faster than 1/30.

In most cases, you may need to use a shutter speed of 1/60 and above. Because there is often a slight jitter when shooting, if you use a slow shutter, your photo will be blurred. If you take pictures with a slow shutter (below 1/60), you'd better use a tripod, so that when you take pictures with a slow shutter, the photos will not be blurred.