Learn how to control the light your flash emits with lighting modifiers
One of the great things about using studio heads is the sheer variety of modifiers and other accessories that you can choose to attach to them to change the lighting effect. From huge softboxes to tiny snoots, these accessories will help you to become a master of light, bending it to your will for any look you like, whether dramatic or subtle.
Essentially these modifiers enable you to change three qualities in the light from your studio head. These are its spread, its strength and its softness. You can tell a lot about each different light option by the way it affects the shadows under the chin on the images below. Smaller light sources such as a bare bulb or a snoot cast sharp, harder-edged shadows, while larger sources such as a softbox or beauty dish create softer shadows, with more gentle transitions between light and dark areas.
You also need to bear in mind the environment you’re shooting in. In a small room with white walls, the light will bounce off them and fill the shadows, while in a dark, cavernous room there will be much less fill.