What filter does the set match? I am Nikon 16-85 lens.

The essence of UV is UV filter, which is mostly used in film machines.

In the digital age, UV has basically degenerated into a protective lens, but UV glass lenses will have an impact on the optical path of the lens itself, such as glare or dark corners, and poor UV will also lead to blurred imaging of the lens.

The quality of B+W multi-film filter is very good, and the imaging is almost the same as that of naked lens. Ultraviolet rays alone cannot improve the imaging quality.

Polarizer, also called CPL mirror, consists of two layers of lenses and can rotate. It is mainly used in situations where strong side light interference is serious. It can filter out the reflection of objects caused by side light interference, and can be used as grey mirror to some extent. Most commonly used in still life photography and landscape photography, it can make the sky darker, bluer and more saturated in color. However, CPL will lose the amount of light, about two apertures, which is generally not suitable.

Professional filters used in landscape photography, such as grey mirror and semi-grey mirror in various shades, are not necessarily cost-effective. Novices of domestic "natural" brands can also buy some filters, which are very cheap and don't feel bad if they are broken.