What is a big light ratio environment?

This definition refers to the difference between the highest brightness and the lowest brightness in a photo.

Large light ratio environment, also known as large light ratio, refers to the difference between the highest brightness and the lowest brightness in a photo. In photography, the large light ratio refers to the light reception ratio between the dark side and the bright side of the subject under the illumination environment.

In landscape photography, it is easy to encounter large light ratio scenes, which are still very large. For example, in the sunset, mountain scenery and other scenes, you will encounter a large light ratio. Photographers will use some strategies to deal with scenes with high light ratio, such as using a medium-gray gradient lens or using the bracketing exposure method.