The main light in the studio is called which?

• A. Key Light
• B. Fill Light
• C. Back Light
• D. Rim Light

Answer: (A)

In studio lighting, the main light is the primary illumination that defines the subject’s form, exposure, and overall mood. This light is typically the strongest and is positioned to sculpt features with deliberate shadows, establishing the look of the image. The fill light then softens the shadows created by the main light without taking over the primary shape, while the back light sits behind the subject to separate them from the background, often creating a rim to enhance depth. A rim light is a specific edge highlight from a back light. Because the question asks for the main light, the term used is the key light.