1, in the same screen, if the person's range of activities is small, such as the teacher sitting in front of the podium lectures and standing up lectures, you can use a main light two active parts; in this way, the light projection direction consistent, background only a shadow, it seems that the scene is more unified, more real 2, if the person's scope of activity is larger, such as teachers need to often to the podium under the student patrol, to the podium on the blackboard, the operation of the media to demonstrate, and so on, must need two or a few lights for light lighting.
Lighting different parts of the lights, not only to pay attention to the link between the light, so that the movement of the characters smooth soothing, picture unity, but also pay attention to not let the light affect each other and weaken the effect of the picture. 3, shooting teaching feature film on-site interview, because the scope of the shooting is very large, and lamps relatively few, can be led by the lighting personnel to follow the shooting characters, scenery of the different positions together activities.
In the filming of the big scene events are certainly the same, such as shooting the theme class meeting, the anniversary activities, but pay attention to shooting the same topic film, lights and characters, scenery distance and azimuth should be as far as possible to maintain the same, so that the main light of the effect of consistency, education and teaching thematic video style unity. A secondary light, also known as an auxiliary light, refers to an auxiliary light that shines in a shadow part that is not directly illuminated by the main light. The secondary light plays a role in adjusting the balance of the video image, because it is auxiliary light, and it often adopts softer light. The proportion of the brightness between the light and the main light affects the contrast of the picture, the effect of the video, the size of the light ratio is not fixed, according to the specific circumstances.
The environment, scenery and characters are different, and the light ratio is different.