What should I pay attention to when buying a set-top box flash?

Overhead flash has many advantages, such as portability, low cost and sufficient luminous intensity. It has become an artificial light source widely used by amateur photographers, bringing great convenience to all kinds of photography. However, due to the wide variety of flashlights on the market, the efficiency varies widely, so the following points should be considered when matching.

1, look at the flash index first. Different models of flashlights have different flash intensities and different effective irradiation ranges. So the flash index is very important. Generally speaking, a flash with an index of around GN24 is enough. The greater the flash index, the greater the flash power and the farther the irradiation distance. Depending on the usage, some players will choose high-index lights, such as the Stander DF800 flash with an index of GN58.

2, the function of the flash. Nowadays, the flash is very powerful, which can not only realize the synchronous flash of front and Hou Lian, but also have the function of multi-lamp flash and multi-frequency flash. However, the more functions, the more complicated the setting of the flash. It's not easy to play with these. Select the required function according to the purpose.

3. The flash angle can be adjusted. The lamp head of the flash lamp can be adjusted up and down by -7 ~ 90 degrees, and it is necessary to adjust it by 270 degrees left and right, because reflected flash is the most commonly used flash technique.

4. Flash memory performance. There are two kinds of flash: special flash and ordinary flash. As long as the flash is plugged in, the special camera can be used for TTL metering. Just look at the "hot boots" on the camera flash socket. If there are multiple contacts on it, this kind of camera can be used together. It is best to choose this kind of flash. For cameras with only one contact or only one flash socket, only universal cameras can be used. Of course, there are also two kinds of general manual and automatic, which can be selected according to needs.