Built-in flashes have many disadvantages, so properly chosen external flash is a valuable source of additional lighting. It helps you to take pictures even in total darkness and to compensate the shortage of light indoors and outdoors. It is not a secret that the ability of correct use of flash will help to make higher-quality pictures and achieve the desired results. Flashes combine compact size, power and small weight, they work with the camera as a whole, providing the necessary level of illumination.