How to use high-power flash and brand introduction

Flash sometimes plays a decisive role in the quality of photography. It is one of the ways to enhance exposure, especially in dark places. Using flash can help make the scene brighter. Now I will bring you how to use high-power flash and introduce the brand. I hope it will be helpful to you!

1. How to use high-power flash

Electronic flash is sometimes called a 10,000-time flash. It has high illumination, but short illumination time (the illumination time is about 1/5000-1/2000 second, so the shutter has no control effect on the flash.) It can be synchronized with high-speed shutter except for curtain shutter and steel shutter), and can continuously Flash, convenient for quick photography, is the artificial light source we use most.

Flash is a point light source, so the change in intensity of illumination is directly affected by the lighting distance. That is, the farther the light exposure distance is, the greater the illumination (the extent to which the subject is directly exposed to light). weak.

We can use the flash as follows:

First determine the distance between the subject and the camera, and then press "Guide Number (GN)/Distance between the subject and the camera (M) =Apply the aperture (F)" formula to calculate and obtain the aperture that should be used under the current conditions. For example, if the flash index is 24 and the distance between the subject and the camera is 3 meters, then we should use F8 aperture (24/3=8). Of course, we can also first determine the aperture used when shooting, and then transform the above formula and use "flash index/aperture used = shooting distance" to determine the shooting distance.

(Note: ① The flash index is usually printed on the back of the flash; ② When using the flash, the shutter speed must not exceed the highest synchronized shutter speed supported by the camera, but the inter-lens leaf shutter can be used at any shutter speed Synchronize with the flash at high speed; ③ Do not flash the light directly into the baby's eyes at close range, otherwise it may damage the baby's eyes and cause serious consequences)

2. The brand of the flash

About. There are two main brands of flashlights, domestic and foreign. Canon, Nikon, Yongnuo, Metz, etc. are all good foreign brands, while domestic brands such as Yinyan, Yongnuo, Yingmu, Meike, and Nissin are also good choices.

My summary: After reading the above content, everyone is interested in high-power flash