Why is the skin color of indoor portraits different from the light on their faces? Is there a reason to wear makeup?

The aperture or exposure speed has been moved, or the light intensity is different twice and needs to be reset. The change of sensitivity with the film should be negligible or set to speed priority mode. In addition, the aperture of portrait photography is a little small, so it is recommended to put it at 2.8 or 3.2. There is a plug-in high-power flash (formula). If you use reflector and other equipment, it will also have a certain impact. Different angles and reflection points will have different effects. Photos or artistic photos will also be affected by the absorbance of the background, and even the gloss of the model's hair and the gloss on her face may become one of the factors that affect the effect. As for the focal length, it has nothing to do with the light. If the model's face is shot empty, it is a focal length problem, and there is no need to adjust the lens length except for long-distance photography. Upstairs, I don't see any photography problems. Let's shout out what we can adjust first. In addition, I suggest you change the classification to photography.