How to arrange three 400-watt lamps and set camera parameters in children's studio?

The floor lamp is placed behind the portrait to illuminate the background and provide silhouette light. The other two lights illuminate the portrait from the front, left and right respectively. The distance between the two lamps and the characters should be as different as possible, so as not to cause the light on the face to be too flat. White balance can be set in automatic mode or according to your lamp type; Sensitivity100,200 is enough; Aperture priority mode and manual mode can be used. The aperture size is set to F5.6, and the face is selected by spot metering and metering points, and then the exposure compensation is increased or decreased according to the shooting effect. If you use manual mode, increase or decrease the shutter time according to the shooting effect to obtain satisfactory shooting effect. In fact, once the light source is fixed, there is basically no need to change the exposure combination every time after shooting. Manual mode is used for each shooting, and ISO value, aperture value and shutter value can be used. It is best to shoot with a tripod fixed camera.