OVERVIEW
A UV filter protects your delicate and expensive camera lens from dust, fingerprint, scratches, or, more importantly, from physical shock and damages. It does, however, sound like the functions of another filter, Lens Protector, because a UV filter plays a role in lens protection and avoiding negative influences caused on images by Ultraviolet lights. So what's the difference? UV (Ultraviolet) radiation affects image quality in the form of haze, which impairs contrast and sharpness in the image. UV filters are long pass filters that block & cut the UV wavelength range and transit the visual spectrum, the light we see in our eyes.
Benefits of using a UV Filter:
- Prevents a specific range of ultraviolet lights from passing into the camera
- Maintains the image contrast and sharpness while reducing bluish color casting
- Provides extra protection to your camera lens from physical damages and/or other nuisances (i.e. dirt, sand, dust)