Bounce

Bounce

noun / verb | Lighting

A lighting technique in which a direct light source is aimed not at the subject but at a reflective surface — a white card, foam board, ceiling, wall, or purpose-built reflector — and the reflected light from that surface illuminates the subject. Because the reflected light comes from a large surface area rather than a small point source, it is soft, diffuse, and flattering. "Bounce" is both the technique (to bounce the light) and the equipment used (a bounce card or bounce board). It is one of the simplest and most widely used methods for achieving soft light without a softbox or purpose-built diffusion system.

Quick Reference

The Explanation: How & Why

Bounce lighting works because of the same principle that governs all soft light: a larger apparent source produces softer light. When a direct light source is aimed at a white wall or a large reflective card, the entire surface of the wall or card becomes a secondary light source. A wall that is 8 feet wide and 10 feet tall is an enormous light source relative to the subject — far larger than any softbox — and produces correspondingly soft, wrapped illumination.

Why bounced light is soft:

A direct light source (a bare bulb, a fresnel, a PAR can) is a small point source that casts hard, well-defined shadows. When that same source is aimed at a large white reflective surface, the surface redistributes the light across its entire area. Every point on the reflective surface then emits light toward the subject from a different angle. These multiple angles of illumination from a large area produce overlapping shadows that are soft and diffuse rather than hard and defined.

Common bounce surfaces:

White foam board (bead board, polystyrene): The most common and cheapest bounce surface on professional sets. A 4x8 foot sheet of white foam board, held by a grip or mounted on a stand, provides a large, neutral reflective surface that bounces light without adding colour cast.

Ceiling and walls: In a white-painted room, a light aimed at the ceiling bounces a soft, enveloping fill light back down onto everything in the space. This is the simplest possible soft light setup — aim the light up and the room fills with diffuse illumination. The ceiling bounce technique is widely used in documentary and run-and-gun shooting where setup time is limited.

Silver reflector: A silver-coated reflector bounces light more efficiently than a white surface, producing a brighter but slightly harder bounced light. Silver reflectors are used when the bounce surface needs to be smaller or further from the subject than white cards would allow.

Gold reflector: A gold-coated reflector bounces light with a warm colour cast — useful for simulating golden hour light or adding warmth to a subject in exterior setups. Gold reflectors are standard equipment on exterior location shoots for warming fill light on subjects in shade.

Bounce in different production contexts:

Documentary and news: Bounce lighting is fundamental to documentary and news camera work. A camera-mounted LED light aimed at a white ceiling or wall provides soft, directionless fill that flatters subjects without the setup time that softboxes or dedicated lighting rigs require.

Exterior fill: In exterior shooting, large white reflector boards (sometimes called "floppies" when they are large fold-down reflectors) are positioned to bounce sunlight back into shadow areas on subjects' faces, reducing the contrast between sunlit and shaded sides.

Interior practical setups: In an interior location where practical lamps create warm pools of light, bounce cards can distribute and soften that existing light without introducing new fixtures.

The efficiency trade-off:

Bouncing a light always reduces its intensity — the reflective surface absorbs some light and scatters the rest in multiple directions rather than focusing it toward the subject. A light bounced off a white card loses approximately one to two stops of intensity compared to pointing the same light directly at the subject. The cinematographer must account for this loss when planning exposure.

Historical Context & Origin

Bounce lighting is one of the oldest techniques in photography and cinematography — it predates purpose-built softboxes and diffusion materials. Early portrait photographers discovered that directing light toward white-painted walls and ceilings produced more flattering, natural-looking illumination than direct lighting. The technique was refined in cinema through the studio era as gaffers and cinematographers developed the vocabulary of light modifiers. The availability of inexpensive foam board and purpose-built reflectors in the late 20th century made bounce lighting practical for any budget level. The technique remains as relevant for a one-person documentary shooter as for a fully staffed feature film production.

How It's Used in Practice

Scenario 1 -- Ceiling Bounce (Documentary DP): A documentary DP arrives at an interview location with limited time to set up. They point a single LED panel at the white ceiling directly above and slightly in front of the subject. The ceiling becomes a large, soft light source that illuminates the subject from above with gentle, flattering fill. Setup time: under two minutes. The result is naturalistic and adequate for the context.

Scenario 2 -- Exterior Reflector Fill (DP / Grip): An exterior scene has strong overhead sunlight that creates deep shadows under the actors' eyes. The DP asks the grip to position a large white foam board reflector at face height on the opposite side from the sun, angled to bounce sunlight back up into the shadow areas. The reflector fills the shadow without adding artificial light to the scene. No power is required.

Scenario 3 -- Studio Soft Key (Gaffer / DP): A DP wants an extremely soft, large key light for a close-up scene. Rather than using a softbox, the gaffer aims a 2K tungsten fixture at an 8x8 foot white bounce card positioned above and to the side of the subject. The large card becomes the effective key light — a soft, natural-looking source much larger than any available softbox.

Usage Examples in Sentences

"Bounce that light off the ceiling. I do not want anything direct on this setup."

"There is no power in this location. Use a reflector to bounce some of that window light back onto her face."

"Bouncing costs you about a stop and a half. Factor that into your exposure before you commit to the setup."

"A 4x8 white card bouncing a 1K is softer than any softbox in my kit. It is the largest source I can create in this space."

Common Confusions & Misuse

Bounce vs. Diffusion: Both techniques soften a hard light source, but through different mechanisms. Diffusion places a translucent material in front of the source, scattering the light as it passes through. Bounce reflects the light off a surface, creating a secondary source. Diffusion maintains the directional quality of the original source while softening its edges; bounce can completely change the direction of the light (from the original source direction to the bounce surface direction).

Bounce vs. Fill: Fill light is any light that reduces the contrast between the lit and shadow sides of a subject. Bounce is one method of creating fill — by reflecting light from a surface. But fill can also be provided by a direct soft source (a Kinoflo, a softbox) or by existing ambient light. Bounce produces fill; not all fill is bounce.

Related Terms

• Bounce Board -- The physical reflective surface used in bounce lighting; a white foam board or purpose-built reflector
• Diffusion -- An alternative softening technique; diffusion passes light through a translucent material rather than reflecting it
• Key Light -- The primary light source that is often bounced to produce soft key illumination
• Chimera -- A softbox alternative to bounce; both produce soft light but through different physical mechanisms
• Kinoflo -- A fluorescent fixture that produces inherently soft light; sometimes used instead of bounce when setup space is limited

See Also / Tools

The Shot List Generator is relevant to bounce planning — noting on the shot list which setups will use bounce as the primary light source helps the grip department anticipate the need for reflector stands, foam board, and positioning time within each setup.