These huge parabolic umbrellas are ideal for indoors and outdoors work. They are heavy duty constructed for using on location as well as inside studio. The fiberglass rods are strong and gives ample tension to make a beautiful parabolic shape to offer an even and soft light. Fotodiox Umbrellas are designed to be used with any tungsten or flash light source, umbrellas will soften, amplify, and ease the light output to subject. Umbrellas with a white interior will soften and wane light more than an umbrella with a silver lining. This umbrella is made of diffusive nylon fabric and easy to use in tight spaces. It has minimum light reduction. Tip: Umbrella size is usually chosen by the size of the subject and the strength of light supply being used. Choosing an umbrella surface is as significant as selecting a paint and brush. Suggested use: Larger Groups and Full Length Portraits.