Tianya original multilayer coating MC UV mirror 40.5/49/52/55/58/62/67/72/77/82/86MM
Advanced optical glass lens; adopting international advanced coating technology, higher light transmittance! Better color effect!
Pictures taken in kind, non-network pictures
Product Picture: (Idea: This display picture is for reference only, the actual caliber size is subject to the title)
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![](https://img.alicdn.com/imgextra/i2/90400009/TB2CMHjlVXXXXXrXpXXXXXXXXXX_!!90400009.jpg)
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"About UV mirror":
UV is the abbreviation of the English word Utlraviolet, UV mirror can filter out the ultraviolet rays in the sun, so it is also called ultraviolet filter.
As the UV lens can not only improve the imaging, but also protect the lens from dust, fingerprints and other pollution. and so. The UV lens is always installed in front of the lens without taking it off. It is a necessary filter for the new machine.
"Function details":
the firstIt prevents ultraviolet rays. Ultraviolet rays are rays with a wavelength of 200 — 400 nanometers emitted by the sun. It is also the shortest wavelength in sunlight. This kind of rays is invisible to our naked eyes, but it can make photosensitive materials such as film photosensitive. This phenomenon reduces the vividness of the color of the captured image. At this time, we can use a UV lens to filter out these ultraviolet rays, reduce the blue-violet light waves transmitted to the photosensitive material, make the distant view clear, and improve the contrast and color saturation of the distant view. In some special occasions, such as plateau, the ultraviolet rays are extremely strong, add a UV mirrorIt is still necessary.
secondIs to protect the DC lens. Since most of the DC lenses are exposed to the outside, they are easily contaminated by dust, water droplets, oil stains or fingerprints. This requires us to wipe the lenses frequently. DC lenses are very delicate, and once the mirror wear is caused It is difficult to recover, which will undoubtedly seriously affect the clarity and quality of the picture. In addition, accidental collision and foreign body contact during normal use will cause irreparable consequences. Therefore, a transparent UV protection lens is installed on the outside of the lens to protect the lens from direct pollution or damage. In other special occasions, such as waterside, in very humid spaces, scenes of emergencies, especially in harsh shooting environments or windy and sandy weather, due to many uncertain factors, the lens may be stained. Equipped with a UV lens can protect the lens very well. There is a saying that is not good: ”With UV in hand, you are not afraid of everything”.
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