Rectangular or octagonal fabric enclosure that softens and diffuses light from flash or continuous sources.
Technical Details
Softboxes consist of a collapsible frame made of fiberglass or steel, black outer fabric, and silver or white inner walls with reflectivity values of 85-95%. Front diffusion is achieved through one or two layers of ripstop nylon fabric with transmission values between 60-80%. The beam angle is typically 45-60°, with a light loss of 1.5-2 stops due to diffusion. Common variants include octagonal softboxes (8-sided for more natural eye reflections), strip boxes (narrow rectangles 30x120 cm), and beauty dishes (flat, round construction).
History & Development
Photographer Dean Collins developed the first commercial softbox for studio photography in 1973. Chimera Lighting launched the first foldable softbox in 1980, setting the standard for modern designs. In the 1990s, specialized film versions with heat-resistant materials for tungsten lights followed. LED panels from 2010 onwards enabled ultra-lightweight constructions and battery-powered solutions.
Practical Application in Film
Roger Deakins used large 8x8 foot softboxes for the even illumination of interrogation scenes in "Blade Runner 2049." Typical setups include a key light with a 120x80 cm softbox at a 45° position, combined with practical light sources. Advantages: Gradual shadow transitions, controllable light direction, no hotspots. Disadvantages: Bulkiness, susceptibility to wind in outdoor shoots, longer setup time compared to direct light.
Comparison & Alternatives
Umbrellas produce softer but less controllable light with more spill. Lanterns offer 360° illumination but without directional control. Modern LED panels with built-in diffusion (Arri SkyPanel, Litepanels Gemini) are increasingly replacing softbox setups with more compact designs and variable color temperature. For hard shadows or pinpoint illumination, Fresnel lenses remain the better choice.