Boston Made, the media and marketing brand of Boston Made, Inc. at bostonmade.com, explores how small teams can produce video that looks professional. Lighting is one of the most important, and most intimidating, parts of that work. The good news is that the principles are simple, and many of them can be applied with household lamps or a well-placed window. This guide explains the basics of lighting a seated interview.
What Lighting Actually Does
Lighting does three jobs in an interview. It makes the subject visible, it gives the face shape and dimension, and it separates the subject from the background. Flat, even lighting from directly in front can look washed out. Light from only one side with nothing else can look dramatic or gloomy. Most interview lighting aims for a balanced middle ground: a face that looks natural, with gentle shadows that suggest depth.
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Three-Point Lighting Explained
Three-point lighting is the classic starting setup. It uses three sources, each with a specific role:
- Key light. The main and brightest light, placed in front of the subject and off to one side, often at an angle of roughly forty-five degrees and slightly above eye level.
- Fill light. A softer light on the opposite side that lightens the shadows created by the key. The fill is usually dimmer than the key so some shadow remains.
- Back light. Also called a rim or hair light, placed behind the subject and out of frame. It creates a thin outline of light on the hair and shoulders, separating the subject from the background.
The balance between key and fill controls the mood. A strong difference creates a more dramatic look, while a small difference produces a bright, open feel typical of corporate and educational video.
Hard Light Versus Soft Light
Light quality matters as much as placement. Hard light comes from a small, direct source, such as a bare bulb or midday sun, and creates crisp, dark-edged shadows. Soft light comes from a large source relative to the subject, such as an overcast sky or a light shone through fabric, and creates gradual shadows that flatter most faces.
For interviews, soft light is usually preferred. Softening a light can be as simple as bouncing it off a white wall or ceiling, or placing a diffusion material, such as a softbox, white shower curtain or parchment-like diffusion sheet, between the light and the subject, keeping heat-safe distances from any lamp.
Using Window Light
A large window can be an excellent key light at no cost. To use it well:
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- Position the subject so the window is to one side and slightly in front of them, not directly behind.
- Use a sheer curtain to soften harsh direct sunlight.
- Place a white foam board, poster board or sheet on the opposite side to bounce light back as a fill.
- Watch the clock. Window light changes as the sun moves and clouds pass, so shoot within a consistent window of time.
Avoid placing a subject with their back to a bright window. The camera will either expose for the window and leave the face in silhouette, or expose for the face and blow the window out to pure white.
Managing Color Temperature
Different light sources have different colors. Daylight tends to look cool and bluish on camera, while many household bulbs are warm and orange. Mixing them on a face can produce odd, uneven skin tones. Solutions include:
- Turning off overhead lights that clash with the main source.
- Using bulbs or LED panels that match the dominant light, such as daylight-balanced lights near windows.
- Setting the camera’s white balance manually rather than relying on automatic settings, which may shift during a take.
Lighting the Background
A well-lit subject in front of a dark, murky background can feel flat. A small lamp, a practical light visible in the frame, or a light aimed at the wall behind the subject adds depth. Keep the background slightly dimmer than the subject so attention stays on the face. Moving the subject a few feet away from the wall also reduces shadows and makes background separation easier.
Common Problems and Quick Fixes
- Glare on glasses. Raise the key light higher or move it further to the side, or ask the subject to tilt their glasses down very slightly.
- Raccoon eyes from overhead lights. Turn off ceiling lights and use a key at roughly eye level.
- Shiny skin. Soften the light, move it further away or use a light, non-greasy blotting product if the subject is comfortable with it.
- Harsh shadow on the wall. Move the subject forward or raise and soften the key light.
- Flicker. Some inexpensive LEDs and fluorescents flicker on camera at certain shutter speeds. Test before filming and adjust settings or swap lights if needed.
A Minimal Budget Kit
A capable starter kit for interviews can be modest:
- One soft key light, such as an LED panel with diffusion.
- A reflector or white board for fill.
- A small light or lamp for the background or hair.
- Light stands or sturdy clamps.
- Sandbags or weights for stands in busy spaces.
Safety matters with any lighting. Secure cables so no one trips, keep hot lamps away from fabric and keep stands weighted.
Test Before the Subject Arrives
Set up the lights with a stand-in, such as a crew member, sitting in the interview chair. Check the image on a larger monitor if possible, not only on the camera’s small screen. Look at skin tones, shadows, background and any reflections. Making adjustments before the interviewee sits down keeps the session relaxed and focused on conversation rather than equipment.
Lighting is a skill that improves with practice. Understanding the roles of key, fill and back light gives any small team a reliable foundation to build on.
Quick check: In three-point lighting, which light separates the subject from the background?
- The key light
- The fill light
- The back light
Show answer
C. The back light, placed behind and out of frame, outlines the hair and shoulders so the subject stands out from the background.