How to flash the studio flash?

The flash in the studio is a strong flash (from 1/800 seconds to 1/2000 seconds) when high voltage and high current pass through the xenon lamp tube instantly.

Flash is mainly triggered by wireless signal transmitter. The transmitter is installed on the hot shoe of the camera or the line interface of the flash lamp, and the receiver is installed under the hot shoe seat of the flash lamp, and then the same communication channel is set, so that when the camera presses the shutter, the flash lamp can be controlled in this wireless way. This method is widely used in studio photography.

Working principle:

According to the size of the capacitor, it can be converted into strong light, which is generally divided into two types, one is boost capacitor, also called negative capacitor, and the other is main capacitor for energy storage. The size of the main capacitor directly determines the energy that the flash tube can release. In this way, the energy of the flash tube is directly converted into strong light. Generally speaking, a 400W/S lamp needs about four main capacitors of more than 400UF.

Extended data:

Precautions for using studio flash:

1, output power

Generally, the flash power of professional photo studios is between 600W and1200 W. Some lamps used for commercial shooting have several thousand W output power, and the photographic lamps for shooting large advertisements can reach tens of thousands W. For photographers and small-scale studios, it is necessary to find a balance between sufficiency and economy.

2. Color temperature

The normal color temperature of flashlights is around 5600k, but the color temperature of flashlights produced by each manufacturer is different. Even the products of the same brand have individual differences. Using soft light equipment will prolong the service life and reduce the color temperature of the flash. If you buy a set of lamps at the same time, you can measure whether their color temperature is uniform if possible.

3. Call back time

The callback time is related to the continuity of shooting. Generally, the return time of flashlights below 1000W is within 1 to 5 seconds, and the return time of flashlights with higher output power is longer. As long as it is within this range, it is normal, and it is not necessary to ask for too much time to call back. Too short callback will bring great load to the capacitor, and the hidden trouble of fault will also increase.

Baidu encyclopedia: studio Flash