Basic functions of camera lamp

In the early days, halogen lamps were mostly used as illuminants, such as BL-DC2 camera lamps, whose color temperature was between 28K and 3K K. When shooting, the white balance of the camera should be set at the incandescent lamp position to show good color reproduction. Its disadvantages are low light intensity, high power consumption and short service life.

The camera lamp with HID lamp as the luminous body goes further, with a color temperature of about 56K, which is similar to that of sunlight, and the photoelectric conversion efficiency is six times that of the camera lamp with traditional halogen lamp as the luminous body. The light intensity is much higher and the service life is as long as thousands of hours. BL-DC2F is a camera lamp with HID lamp as luminous body.

LED lamps with solid lighting technology are widely used in the field of photography, and their color temperature can reach 56K accurately. The camera lamp with 56K color temperature can be mixed with natural light to achieve color balance. Small size, high power, high brightness, good light efficiency, low energy consumption and low temperature are a bright spot. The camera lamp with LED lamp as luminous body has become the mainstream. BL-V3 is the LED camera light. Light intensity is a main index. The power of small camera lamp is only a few watts, and the light intensity is only a hundred lumens. There are hundreds of watts and thousands of lumens in camera lamps with high light intensity. If you often take pictures in places with weak and wide ambient light, such as the general assembly field, you need a camera lamp with high power and high intensity.

Small camera lamps are generally integrated, that is, the lamp cap and battery are integrated, and they can work by being directly plugged into the accessory socket of the camera. Simple and easy to operate, it is very suitable for general application of small DV machines. When LED is used as a luminous body, the light intensity is between 5W and 25W, which is enough for non-professional photographers.

Professional camera lamps have high power and large volume. Generally, the lamp cap and the battery are separated, and the battery and the lamp cap are connected by spring wires. The battery is carried on the body, and the lamp holder is plugged into the camera. Professional camera lights can generally adjust the illumination range, adjust the light intensity, display the electric quantity and other functions, and are also equipped with various accessories such as color films and light shields. For example, BL-DC2F is a professional camera lamp, which has the highest intensity of portable camera lamp at present, can reach the illumination distance of more than 2 meters, and the photoelectric conversion efficiency is six times that of traditional camera lamp. It is one of the commonly used camera lights for public security reconnaissance and field work.

there is also an integrated high-power professional camera lamp, such as BL-55K, which uses five 5W LED as illuminators, with a luminous rate of 25W and a luminous intensity of 15lm, and can be used for stepless dimming, external power supply, intelligent electric quantity display, etc., and also comes with accessories such as a filter light shield. The disadvantage is that the price is relatively high, which is only suitable for professional photography.

.6W low-power LED lamp is widely used. The plate-type camera lamp produced with this LED has the advantage of large luminous area, but of course, the disadvantage is that the large area is not very beautiful when it is installed on the camera, and the power is not high enough when it is small, but the price is relatively low, which is liked by non-professional photographers. Such as JM-156K, BL-16P and so on. The illumination angle of the camera lamp is also an important factor. Choose camera lamps with different illumination angles according to the shooting requirements. For example, JY-D2 is an ultra-wide-angle camera lamp, which is characterized by a wide illumination area and an illumination angle of 11 degrees, even and soft light, and no dark angles around it. It is generally used with a lens with a focal length of 28-55 mm.

there is also a camera lamp with adjustable illumination, which is generally based on the standard lens of the photographic equipment. If the illumination angle is too large, it will waste energy. If the illumination angle is too small, there may be black edges or dark corners in the image. The illumination angle of most camera lamps is about 6 degrees. In order to achieve higher light intensity, many panel lamps use 45-degree LED. There are also a few camera lamps with the function of adjusting the illumination angle, such as BL-HD8, BL-DC2F and so on. The illumination angle of the camera lamp can be adjusted to adapt to photographic lenses with different focal lengths. Multi-lamp splicing has also become a fashion. It was first seen that the panel camera lamp made of low-power LED lamps has splicing function, which can realize random multi-lamp splicing. What is most worth mentioning is the BL-HD8 small camera lamp, which can not only adjust the light and illumination angle, but also be spliced at will. It is called "Transformers" by professional photographers. The camera lamps of BL-9P lamp can not only be spliced at will, but also all the camera lamps combined together can be adjusted by one adjusting knob at the same time, thus achieving the real combination splicing of machinery and electrical appliances.