This Impact Reflective Umbrella in white, measures 30" in diameter and is used to soften, broaden, and diminish the light output of any flash or light source. The white interior will reduce the light output more than an umbrella with a silver lining. This umbrella is ideal for a one or two person headshot.
Choosing umbrella size is determined by the size of the subject, and the strength of the light supply being used. Choosing an umbrella surface is as subjective as choosing a paint and brush.