What are the benefits of black and white photos?

First, it is convenient to store, and second, it is easy to distinguish between good and bad photos.

Black and white can not only highlight the relationship between light and shade, but also strengthen the contrast for good works; For bad works, you can also erase all the uncoordinated colors. In other words, assuming that the photographer's skill is average, or the film is average, then black and white can erase the defects of the characters themselves and the disharmony of the background environment.