Indoor portrait photography polishing

When should I use a flash?

When the subject's light is insufficient to lower the shutter or the sensitivity improvement is limited, it is necessary to turn on the flash to ensure the correct exposure of the subject under the current shutter; On the other hand, when the light is sufficient, it will also be filled with the reflector hit by the flash lamp; On the other hand, the flash only plays the role of flashing, and it will be used when shooting indoors.

1. Use in dark environment, such as at night or indoors.

2. In the environment of strong light (such as noon) with high light ratio (some friends may not understand, why do you use flash when the light is so good at noon? ) Because the ratio of sunlight to light is large at noon, the light shines directly from the top of the head. The reverse side of a person's face is black, so a flash is used to fill the light. Only in this way can we take good photos with uniform colors.

Incidental use skills:

How to choose and use flash?

Since the advent of a large number of small electronic flashlights, because of its portability, low price, sufficient luminous intensity and many other advantages, 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 is also very different, so some considerations should be made when matching them.

First consider the index of the flash. Index is the performance index of the flash, which indicates the luminous energy of the flash. The bigger the index, the stronger the flash. In order to adapt to a variety of shooting environments, it is best to choose a larger index. Of course, the larger the index, the higher the volume, power consumption and price of the flash, but this will not bring too much burden to the photographer, and it is worthwhile compared with its function.

Secondly, it depends on its performance. There are two kinds of flash: special flash, which can automatically select the synchronous shutter within a certain range through the control of the camera computer as long as it is plugged in, and adjust the flash intensity for different exposures; Generally, it is necessary to adjust the aperture according to the table on the lamp and different shooting distances in order to expose correctly. Special flash can only be used for TTL photometry cameras. 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 ordinary cameras can be used. Of course, there are also two kinds of general manual and automatic, which can be selected according to needs.