Is the lower the ISO, the better the image quality? not always! When is a higher ISO better?

This article is selected from the column, there are more chapters, please pay attention to “Le Xiaoyao photography”, more wonderful content will not be lost! < / P > < p > when taking photos, the lower the ISO, the better the image quality. This is a common sense that we all know. But many people still have doubts about ISO. For example, when the shutter speed is very high, or when the light is dark, the minimum ISO can no longer meet the exposure requirements. Should we use a slightly lower ISO to make the photo slightly underexposed, or use a slightly higher ISO to make the photo more exposed and better? < / P > < p > with regard to this issue, many people may think that a slightly lower ISO has a better image quality due to its lower ISO image quality. Anyway, the exposure can be improved in the later period of under exposure. In fact, this is a wrong idea, because increasing the exposure in the later stage will increase the noise more than using higher ISO when the exposure is sufficient. Especially when the exposure is too much, the color noise will increase significantly when the exposure is increased in the later stage, while the brightness noise is mainly increased when the ISO exposure is improved sufficiently. People who are familiar with the later stage all know that it is easier to reduce the brightness noise and the color noise is very difficult to reduce in the later stage. Fifth personality will be updated, please remember your game account, otherwise you may not be able to play normally

Author: zmhuaxia