What is a UV mirror?

Lead: Photographic equipment is a general term for cameras, lenses and their related accessories, as well as various equipment and articles related to photographic activities. Consumables, including film, and photographic vests and bags operated by most photographic equipment operators belong to the category of photographic equipment. Let's see what UV mirror I'm wearing. I hope it will help everyone.

UV is the abbreviation of the English word Ultraviolet, which means ultraviolet. UV mirror can filter out ultraviolet rays in the sun, so it is also called ultraviolet filter. A UV mirror is actually an ultraviolet filter. Because too much ultraviolet rays will affect the imaging quality, it is one of the necessities for traditional photographers, but for digital cameras and owners of digital cameras, the sensitivity to ultraviolet rays is not as good as that of traditional films, so at this time, the UV mirror is actually just a flat glass, which mainly plays a role in protecting the lens. It can be said that its protection is far greater than filtration.

UV mirrors are usually colorless and transparent, but some will appear purple or purplish red at some angles because of antireflection films. Many people buy UV mirrors to protect the precious lens coating, which is actually only an accessory function. The main function of UV mirror is to absorb ultraviolet rays with wavelength below 400 nm, and it has no filtering effect on other visible/invisible rays. Ultraviolet rays can be filtered because the lens contains lead, so the ultraviolet lens is heavier than other lenses of the same size and thickness.

UV mirror is suitable for shooting in seaside, mountains, snowfields and open areas, which can weaken the blue tone caused by ultraviolet light. At the same time, for digital cameras, it can also eliminate the interference of ultraviolet rays on CCD, which is helpful to improve the definition and the effect of color reproduction.