Of course, an external flash, especially on a compact digital camera, is, first of all, a lot of weight that you need to often carry with you, but if you are ready to make such sacrifices, and also spend a considerable amount of money on it, then this investment is very worthy for a number of reasons. and here are some of them.
Excellent power
While the built-in flash of a compact camera can theoretically illuminate objects at a distance of up to 3 meters (at ISO 100 sensor sensitivity), the result of an external flash is 10 times higher, or even more. In addition, subjects that are in close proximity to the camera appear in more natural light when shooting with an external flash compared to the built-in flash.
Functionality
An external flash is often equipped with a swivel head, which in turn can be used for artistic purposes as well as to improve the quality of the image that comes out. For example, instead of hitting the flash head-on when shooting indoors, you can aim it at the ceiling and it will fill the entire room with natural light. This shot will look professional. In addition, due to the long flash-to-lens distance, red-eye is physically eliminated, which also saves a lot of time in post-processing.
Customizable
An external flash can be adjusted in terms of power in manual mode if you want to achieve some special effect on the image, in the case of a built-in flash, you will have to rely on electronics, since everything happens automatically there without the possibility of adjustment.
Good results in low light
An external flash can illuminate autofocus within 10 meters, and that's in pitch darkness! In the case of inline, this is not possible at all. Although there is such a function, it does not work as well.
