Canon 50 1.8 What aperture is suitable for portraits and landscapes?

First of all, it depends on the specific subject and subject. Taking portraits does not mean blurring. The function of blurring is to strengthen the subject, so as long as it can make other things that interfere with the visual subject disappear. The big aperture upstairs is used for blurring. So if you think the background will disturb the portrait, use a large aperture to blur it, which is similar to f2.8 f2 is really soft.

Scenery, on the other hand, requires a large depth of field, so a small aperture must be used. In addition, due to digital diffraction, there is no minimum aperture such as f22. I think there were f64 teams in the movie era. I recommend watching their films, which are very good. Generally speaking, this small spittoon is the fiercest in f5.6, but the depth of field may not be enough. It is suggested to be between f8- 16, which can be adjusted according to the light.