Photo technique using flash when shooting model is very wide and deep. If the photographer has mastered the technique of using flash, then as if a door to the new world is open for him. The photographer is now able to create and control the light source in terms of the angle, strength, and quality of the light.
But in a nutshell, what we want to achieve by using flash is, to add to the aesthetics of your model photos. The model will certainly look more attractive if its lighting helps to bring the dimensions of the curve of his body. Suppose you want to highlight the body of the model, add a flash from the back of the model (backlit) so there will be accents that decorate the edge of the model's silhouette to be more clear and formed.
By adding soft boxes or flash light, we can create soft quality lighting. This is usually highly recommended for close-up shots in the face, as it will help model skin to look smoother.
The advantage of using flash is that we are in control of the overall lighting situation. The sun is too hot? No problem. Cloudy? Can be overcome. In fact we can manipulate the flash so that it looks natural and looks like the sun at sunset. Very useful is not it?