What is Flash Trigger?
A flash trigger is a device used to remotely trigger one or more off-camera flash units.
It is typically a small device that attaches to the hot shoe of your camera or connects to your camera's PC sync port, and sends a signal to your flash units when you press the shutter button. Flash triggers can be either wired or wireless, and may use various methods of communication, such as infrared or radio frequency. The primary benefit of using a flash trigger is the ability to place your flash units in different positions or angles, allowing for more creative lighting setups and the ability to control the direction and intensity of the light. This can be especially useful in portrait, product, or other types of studio photography where you want to control the lighting and shadows. Wireless flash triggers are popular because they eliminate the need for cumbersome cables, allowing for greater flexibility in positioning your flash units. They can also be used to trigger multiple flashes simultaneously or independently, giving you more control over your lighting. Overall, flash triggers are a useful accessory for photographers who want to experiment with different lighting setups and achieve more creative control over their images.