What about the camera light intensity?

What about the camera light intensity?

What about the camera light intensity? We often consider various factors when shooting. In order to take beautiful photos, appropriate camera light is essential. Let me explain to you the intensity of the camera light.

What is the intensity of camera light? 1 light intensity is a main index. The power of a small camera lamp is only a few watts, and the light intensity is only one hundred lumens. High-intensity camera lights have hundreds of watts and thousands of lumens. If you often take pictures in places with poor light and wide ambient light, such as the assembly yard, you need high-power and high-intensity camera lights.

Small camera lights are generally integrated, that is, the lamp holder and battery are integrated, and they can work directly when plugged into the accessory socket of the camera. Simple and easy to operate, it is very suitable for the general application of small DV machines at present. When LED is used as the luminous body, the light intensity between 5W and 25W is enough for non-professional photographers 15W.

Professional camera lights are powerful and bulky. Generally, the lamp holder and the battery are separated, and the battery and the lamp holder are connected by spring wires. The battery is 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 power and other functions, and are also equipped with various accessories such as color films and hoods. For example, BL-DC200F is a professional camera lamp, which has the highest intensity of portable camera lamp at present, can reach the illumination distance of more than 20 meters, and the photoelectric conversion efficiency is six times that of traditional camera lamp. It is one of the camera lights commonly used in public security reconnaissance and field work.

There are integrated high-power professional camera lamps, such as BL-5500K, which use five 5W LED as illuminators, with luminous rate of 25W and luminous intensity of 1500lm, and can be used for stepless dimming, external power supply, intelligent electric quantity display, etc. And also comes with filters, hoods and other accessories. The disadvantage is that the price is relatively high, which is only suitable for professional photography.

At present, 0.06W low-power LED lamp is widely used. The flat camera lamp produced by this LED has the advantage of large luminous area, but the disadvantage is that it is not very beautiful when it is installed on the camera in a large area. When it is small, the power is not high enough, but the price is relatively low, which is liked by non-professional photographers. Such as JM- 156K, BL- 160P and so on.

What is the importance of the intensity of camera light? 2. Introduction of camera focal length.

The first thing to pay attention to when choosing a lens is the focal length of the lens. The focal length is actually a matter of viewing angle, and different focal lengths have different viewing angles. In addition, users should be clear about themselves, what is the main purpose of my purchase of lenses? Whether to shoot scenery or people, and so on. As we all know, it is advisable to use a wide-angle lens to shoot landscapes and a telescope lens to shoot people. Therefore, we must first decide the lens focal length we want to buy according to the purpose of photography.

The best focal length for shooting scenery is 24mm wide-angle focal length and 200mm telescopic focal length (both are subject to 35mm specifications, the same below). When the wide-angle focal length of the standard zoom lens evolves from 28mm to 24mm, the viewing angle becomes larger and the range of scenery that can be accommodated is greatly broadened. Generally speaking, the maximum aperture of the lens is not too high for shooting scenery. If you mainly shoot scenery, when choosing a zoom lens, it is basically enough to choose a wide-angle focal length of 24 mm. As for the focal length of the telescope, it should be at least 200 mm. If the focal length of the telescope is 300mm or 400mm, it will be more ideal, and the degree of freedom will be greatly improved. The telephoto focal length of the traditional zoom lens is 300mm, while it is 450mm when used in digital SLR, and the focal length is enlarged by 1.5 times, which makes people feel happier when used. This is the value of digital SLR. Generally, the wide-angle focal length of digital special ultra-wide-angle lens is 12mm, which is equivalent to 18mm of 35mm specification, which is nearly 1.5 times larger than the focal length of 28mm of 35mm specification, thus greatly broadening the left and right range of shooting landscape scenes.

The best focal length for shooting people is 85 mm. According to the standard of 35mm, the lens is selected based on the focal length of 85 mm.. The portrait taken with a focal length of 85mm is basically close to the picture taken by a medium format camera, which not only has a suitable sense of distance, but also the face of the person looks natural, and the distance between the camera and the person being photographed can basically be kept at the usual speaking distance. 85mm focal length can also blur prominent people in the background. In order to obtain a good blur effect, it is appropriate to choose a lens with a larger maximum aperture. The focal length of 85mm is about 135mm on a digital SLR. Although the distance of the lens is a little weak, it is basically no problem, so the focal length of the lens should be at least about 85 mm

A macro lens of 100mm is enough for traditional SLR. 100mm macro lens can shoot flowers at the same time, but when shooting at the same time or near the same time, it is easy to shake because of the long focal length and depth of field of the scene, so anti-shake measures should be considered when shooting. From this point of view, it is easier to use a 50mm macro lens on a digital SLR.