How to adjust the camera iso?

Outdoor settings are generally between 100-200 during the day, and the upper limit at night is 1600. The adjustment of IOS should be adjusted according to the actual environment, and the appropriate exposure should be adjusted with the aperture and shutter speed. The following is a detailed introduction:

1, ISO 100~400 If the lighting conditions are good, it is similar to ISO400~ 1600. ISO is adjusted according to the shooting environment and conditions, as low as possible, and the appropriate exposure is adjusted according to the aperture and shutter speed;

2. When the light is insufficient, you can use high ISO to compensate for the exposure, but it should be noted that the higher the ISO used, the higher the noise and the lower the photo quality.

Advantages of high sensitivity:

The influence of sensitivity on photography is manifested in two aspects: one is speed, the higher the sensitivity, the faster the shutter speed and easier to understand; The second is image quality. The lower the sensitivity, the finer the image quality, the higher the sensitivity and the higher the noise.

It needs to be understood that for a digital camera as an electronic product, the internal image sensor is bound to be subjected to different degrees of optical electromagnetic interference between peripheral circuits and its own pixels. In short, there must be some noise in the photos taken, which is inevitable. All we see is the degree.