Which lighting technique is NOT commonly used in portrait photography?

In portrait photography, the use of light is critical to achieving the desired mood and highlight facial features effectively. Butterfly lighting, Rembrandt lighting, and split lighting are all traditional techniques specifically designed for flattering and dramatic portraits.

Butterfly lighting is characterized by the creation of a butterfly-shaped shadow under the nose, providing an elegant look. Rembrandt lighting is recognized for its signature triangle or patch of light on one cheek, adding depth and dimension to a face. Split lighting divides the face into equal halves of light and shadow, which can create a striking contrast and enhance facial textures.

In contrast, fluorescent lighting is generally not a preferred choice for portrait photography. While it can be used in various situations, it typically produces a very flat and somewhat unflattering light, often lacking the warmth and depth that is desirable in portrait setups. Portrait photographers usually look for lighting that will complement skin tones and enhance features, which is why fluorescent lighting is less favored for this purpose.