Ultraviolet (UV) filters are clear, glass or plastic attachments for digital camera lenses. Their major function is to dam ultraviolet gentle from reaching the sensor. A typical false impression is that they considerably enhance picture high quality in regular capturing situations. Whereas they provide some safety towards scratches and dirt on the lens factor, their impact on seen gentle is usually negligible with trendy lenses and sensors.
The price of a UV filter can fluctuate dramatically, from a number of {dollars} to over 100. This vary displays variations in building 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 danger 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 resulting from movie’s sensitivity to UV gentle. At this time, their position has largely shifted to lens safety.
