What type of lens allows for variable focal lengths in video production?

A zoom lens is designed specifically to allow for variable focal lengths, making it versatile for different shooting conditions. This type of lens consists of multiple glass elements that move relative to each other to change the focal length, allowing the filmmaker to zoom in or out without changing the lens. This capability is particularly useful in video production, where you may need to adjust your framing quickly without interrupting the shot, such as during events or when capturing dynamic scenes.

In contrast, a wide angle lens has a fixed focal length and is primarily used for capturing broader scenes, making it less versatile for varied compositions. Similarly, a prime lens also has a fixed focal length, known for its superior image quality but limited to one specific angle of view. A telephoto lens, while capable of long-distance shots, also has a fixed focal length or a limited zoom range compared to zoom lenses, which can offer a broader range of focal lengths for various creative needs in video production.