Wireless flash activators are a great way to allow your camera to communicate with a flash without needing a physical connection. This allows the flash to fire perfectly, and all you need to do is place the trigger on the camera and connect the receiver to the flash. Make sure that both of you have new batteries. Some receivers connect to the flash memory using a cable, so consult the receiver's instruction manual for the proper connection method. Before turning on the camera or flash, make sure that both the trigger and receiver are activated.
Even experienced professional photographers can find flash photography intimidating, but it doesn't have to be. You just need another flash with its own built-in receiver OR a second receiver that is compatible with the trigger. With the right tools and knowledge of flash photography, you can master off-camera flash. Channels help avoid interference from other photographers' systems, but groups allow you to work quickly with several off-camera flashes. When you're comfortable with a single flash, you can add a second or third, or mimic the effect with a reflector without breaking your budget.
Wireless flash triggers consist of the main transmitter found on the top of the camera, where the flash is normally mounted. If you're shooting at an event with other photographers who also use wireless flash systems, you can work on different channels to ensure that the camera doesn't activate its lights and vice versa. Take a look at some of the most common photographic lighting patterns and try to recreate them with the camera's external flash. When working with wireless flash triggers, you can configure the flash settings the same way you would with the camera's built-in flash. The pop-up flash is only a few centimeters from where the lens is and often emits that burst of intense light that can create ugly lines or spots in images, not to mention the intense light on the subject. Therefore, some photographers are more inclined to photography that involves natural light or anything that does not include using a flash. With wireless flash triggers, you can convert your same flash into a powerful light outside of your camera that doesn't need an electrical outlet or large external battery.
With practice and knowledge of how to use a wireless trigger for your camera, you can master off-camera flash photography.