Which component consists of pieces of colored glass placed in front of the camera lens to prevent stray and undesirable lights from entering the camera?

• A. Viewfinder
• B. Lens Cone Assembly
• C. Filter
• D. Camera Mount

Answer: (C)

Filters placed in front of the lens are used to control light entering the camera. They’re made of colored glass (or similar material) and work by absorbing or transmitting specific wavelengths, which helps curb stray or undesired light that can cause glare, color casts, or overexposure. This is why they’re described as pieces of colored glass that sit in front of the lens—they actively modify the light before it reaches the image sensor.

This differs from other camera components: the viewfinder is for framing and composing the shot, not for filtering light; the lens cone assembly is part of the lens construction rather than a light-filtering element placed in the light path; and the camera mount simply attaches the lens to the body. Filters are the tool specifically designed to influence the light entering the camera to improve exposure, contrast, and color accuracy.