No matter whether you use single lamp or four lamps, and no matter what kind of artistic effect you want to shoot, the studio flash that can accurately control the output and angle can help you get professional lighting effects. In this section, we will discuss how to use flash and reflective umbrella. The general idea is to use a lamp to illuminate the bust, so it is natural to let the lamp illuminate the upper body of the model, so there is the lighting method in the above picture: the flash is facing the middle of the reflective umbrella, and the reflective umbrella is facing the upper body of the model. This is not an ideal lighting method, but from its effect, it can help us understand the lighting characteristics of "flash+reflective umbrella": the flash points to the middle of the reflective umbrella, so this part reflects the strongest light. The farther you go to the umbrella, the weaker the light. Let the handle of the reflective umbrella point to the part you want to focus on. Understanding this feature is the basis for us to use reflective umbrellas well in the next step. In addition, before introducing the use of flash, I mainly talk about white balance. Any light source has a certain color temperature. Only when the color temperature of the camera is set close to the color temperature of the light source can more accurate color reproduction be obtained.