| UV Filter A UV (Ultraviolet) filter is a transparent optical filter that is attached to the front of a camera lens to reduce the effects of ultraviolet light and protect the lens from dust, moisture, and scratches. UV filters are made of clear glass or optical resin that absorbs or blocks ultraviolet rays, which can cause haze, glare, and color shifts in photographs, especially at high altitudes or in bright sunlight. While modern digital cameras are equipped with UV-blocking sensors, UV filters are still commonly used as a protective measure to safeguard expensive lenses from damage and maintain optical clarity. UV filters also serve as a sacrificial layer that can be easily replaced if scratched or damaged, extending the lifespan of the lens. |
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