UV filters are 'longpass' filters that block & cut the UV wavelength range and transit just the visual spectrum, the light we see in our eyes.
UV (Ultraviolet) radiation affects image quality in the form of haze, which impairs contrast and sharpness in the image.
A UV filter allows you to
- prevent or reduce the specific range of ultraviolet light that passes into a camera to produce haze and glare
- maintain image contrast and sharpness and reduce bluish color cast
- protect a camera lens from physical damage and other intrusions