How to install the UV mirror?

1. Purchase a UV lens with the same caliber as the lens. The lens caliber is generally marked next to a ?Φ symbol next to the lens, otherwise it will not be installed.

2. Wipe the camera lens clean first. You can use a cleaning kit. The air blower and lens pen are very effective. Just align the screw on the uv mirror with the lens and tighten it. Be careful when tightening and do not use brute force to avoid damaging the threads on the inside of the digital camera. If the threads are damaged, not only the UV lens cannot be installed, but also external lenses such as extenders and wide-angle lenses cannot be installed. Installed normally.

Extended information

The functions of UV mirror:

In photography, UV mirror is used to protect the lens and filter light. The lens in the camera is the most precious, and it is necessary to strengthen its protection. Installing a UV lens can prevent some dust from corroding it. Of course, it is also very convenient to wipe it without worrying about damaging the lens. When taking pictures, the lens receives the same light as people see objects. If you see things under strong light, you will feel uncomfortable and your eyes will be tired. So I put on color filter glasses and felt that my eyes were much more comfortable. That is because the lenses blocked the Some strong ultraviolet rays allow the eyes to accept things from the outside world with relief.

The same goes for the UV lens on this lens. It can effectively prevent the intrusion of strong ultraviolet rays to produce clear images. Secondly, it can prevent some air pollution from corroding the lens. When shooting with film using a traditional camera. Due to the chemical properties of film, it is particularly sensitive to ultraviolet rays in the sun. In places with strong ultraviolet rays, photos taken with film are generally bluish and white. Seriously affects the photo quality.

Adding a UV filter in front of the lens can effectively filter out ultraviolet rays and improve the clarity of photos. For mountain photography or high-altitude photography, it can make distant scenery clearer and restore a more realistic and gorgeous picture. So at that time, UV filter became a necessary color filter. Because the UV lens can not only improve imaging, but also protect the lens from dust, fingerprints and other contamination.

In the digital age, since the CCD, the core imaging component of digital machines, is no longer as sensitive to ultraviolet rays as film, the filtering function of UV mirrors for ultraviolet rays has gradually been weakened, but due to oil stains, fingerprints, and scratches The damage to the lens coating still exists. At this time, the UV mirror plays more of a protective role. Some people worry that the addition of a UV mirror will affect the image quality.

Baidu Encyclopedia: UV Mirror