Portrait photography is reddish.

When shooting portraits, it is normal to use white balance automatic and portrait mode, and the faces of portraits are all red as shown in the figure. Seeing other people's photos, the skin color is white, and it is difficult to do it well only by controlling when shooting. Most of them are post-processing. Skin tone adjustment is a specialty of ps, and the main step is to add blue and yellow to a great extent. The beauty function is the same principle.