Ultraviolet (UV) filters are clear, glass or plastic attachments for digital camera lenses. Their major objective is to dam ultraviolet mild from reaching the sensor. A standard false impression is that they considerably enhance picture high quality in regular taking pictures situations. Whereas they provide some safety in opposition to scratches and mud on the lens component, their impact on seen mild is usually negligible with trendy lenses and sensors.
The price of a UV filter can differ dramatically, from a couple of {dollars} to over 100. This vary displays variations in development high quality, coatings utilized to attenuate reflections, and the supplies used (e.g., normal glass versus extra sturdy and costly choices). Whereas cheap filters may suffice for primary safety, higher-quality filters can present higher optical readability and sturdiness, decreasing the chance of flare and ghosting, particularly in difficult lighting situations. The historic context of UV filters dates again to movie images, the place they had been extra very important attributable to movie’s sensitivity to UV mild. Right this moment, their position has largely shifted to lens safety.