LED panel light lighting techniques
One-stop lighting
Station broadcasting is an important form of news programs, and there are many cases in various types of programs such as information, weather, interaction, and commentary. Station broadcasting is more flexible than other broadcasting methods. Usually a large screen or light box is the background. When single-person fixed-point broadcasting, lighting can be performed on the basis of "three-point lighting", each position uses 3 to 5 LED panel lights; if it is a walking broadcast within an area, you can use flat panel lights to make a continuous Uniform surface light area. According to the size of the walking range, a flat panel lamp can be arranged every 1.5 m width for surface lighting. Backlight choose flat light or spotlight according to the size of the moving range and the height of the studio floor. The main direction of the surface light is consistent with the direction of the camera. The distance between the host and the background of the large screen should be more than 1.5 m. If it is a large-pitch LED screen, the distance should be larger depending on the situation to avoid camera moiré and stray light from interfering with the screen.
2Lighting in the form of sit-broadcasting
Sitting broadcast is a multi-purpose program format for current affairs news, people's livelihood news, and talk shows. There are different lighting methods for single, double and multiple people. Single-person lighting is usually improved on the basis of "three-point lighting". You can increase the number of flat lights and improve the angle to create uniform lighting for the host. For the lighting of the face light, each host uses 3 to 5 LED panel lights as the main face light and side light of a single host. Backlighting can use LED spotlights or LED imaging lights with the same color temperature, which is more effective for the area control of the light zone and the contour lighting of the host. Use the eye light under the broadcasting table to dilute the shadow of the host’s face. When lighting for two people and lighting for multiple people, the specific role of the directionality of each light must be considered. Sometimes it is necessary to consider one light for multiple purposes, for example, as the side light of host A, but also the backlight of host B; sometimes it needs to be dedicated for special lights, when two or more hosts are sitting close to each other. Down. Use cover and black flag boards to prevent stray light from affecting the faces of other presenters.
Some news programs require the host to rotate at an angle according to different camera positions during the program, for example, an angle for a medium shot lens, and a range of 5°-15° for a close shot lens, or even larger. At this time, it is necessary to consider the lighting layout of different lenses, such as whether two lighting programs are required according to the rotation, or lighting is focused on the main lens.
3 Virtual/Keying
Pay attention to the following points when lighting the virtual blue box or green box:
Do not move the moderator too close to the wall, keep a certain distance, and avoid blue or green reflections from affecting the moderator;
The light distribution of the box body strives to be even. The illuminance of the cabinet should be slightly lower than the illuminance of the character cloth;
If there is a situation where virtual and real scenes are used in combination, pay attention to the consistent illumination of the combined points and avoid dark areas.
4Precise lighting program
Often the appearance of the host is different. When programming the lighting program of each program, according to all the hosts of this program, the light of each host should be fine-tuned in a targeted manner. For example, a host with a fuller face can reduce the brightness ratio of the side light, and a host with a thin face should increase the brightness ratio of the side light; a host with a more "eating" hair style should increase the brightness of the backlight, and the hair style is easy to reflect. The host reduces the brightness of the backlight, and so on. For each host of each program, the lighting program must be more refined and targeted.
