Traditional Culture Encyclopedia - Photography and portraiture - What are the functions of SLR uv mirror?

What are the functions of SLR uv mirror?

SLR is the most popular framing system. So what is the role of SLR uv mirror? Let me tell you, welcome to read.

The role of SLR uv mirror

1. In photography, UV mirrors are used to protect the lens and filter light. The lens in the camera is the most precious, so we should strengthen protection. Installing UV lenses can prevent some dust erosion, and of course it is very convenient to wipe, so don't worry about rubbing the lenses. The lens receives light when taking pictures, just like people look at objects. Seeing things in strong light makes you uncomfortable and tired. So you put on color filter glasses, and your eyes feel much more comfortable. That's because the lens blocks some strong ultraviolet rays and allows your eyes to accept external things under negative conditions.

2. The same is true for the UV lens on this lens. On the one hand, it can effectively prevent the invasion of strong ultraviolet rays from causing image clarity, and on the other hand, it can prevent some air pollution from corroding the lens. When shooting film with a traditional camera. Due to the chemical characteristics of film, it is particularly sensitive to ultraviolet rays in the sun. In places with strong ultraviolet rays, photos taken with film are generally blue and white. Seriously affected the quality of photos. Adding a UV mirror in front of the lens can effectively filter ultraviolet rays and improve the clarity of photos. For mountain photography, aerial photography can make the distant scenery clearer and restore a more realistic and gorgeous picture. So at that time, the UV mirror became a necessary color filter. Because UV mirror can not only improve imaging, but also protect the lens from dust, fingerprints and other pollution. UV mirror is always installed in front of the lens without removal, which makes it the most widely used color filter.

3. In the digital age, because CCD, the core imaging component of digital machine, is no longer too sensitive to ultraviolet rays like film, the filtering function of UV mirror is gradually weakened, but the damage of oil pollution, fingerprints and scratches to lens coating still exists. At this time, the UV mirror is more protective. Some people worry that installing a UV mirror will affect the imaging quality.

How to install a SLR uv mirror?

1. Remove the lens cover, body cover and lens back cover, and prepare to install the uv lens. Care should be taken to avoid dust from entering the camera during installation.

2. Align the installation mark of the lens, align the white mark of the uv lens with the white mark of the fuselage, and slowly and steadily install the lens on the fuselage. Attention should be paid to avoid lens tilt during installation.

3. Lock the rotating lens. After the uv lens is inserted into the fuselage, rotate the lens clockwise to lock it. Rotate the lens until the retaining pin clicks into place.

4. When replacing the ultraviolet lens outdoors, please let the body face down. Because the inside of the fuselage will be exposed when changing the lens, it is impossible to avoid the entry of dust when operating outdoors. Even if the camera has a dust removal function, the lens bayonet of the fuselage should face down to quickly complete the operation of replacing the lens.

Selection method of SLR uv mirror

1. It should be noted that the installation of UV mirror can not produce color cast effect on photos taken in normal environment. After the camera is installed with this filter, the wide-angle end, especially the telephoto end, can be clearly focused. Ordinary UV mirrors are double-sided and single-coated, and the light transmittance is about 96%. In addition, there are multilayer coated MC UV mirrors. Due to the adoption of multi-layer coating technology, the light transmittance reaches 99.9%, which is much better than ordinary UV lens, so the characteristics of the original lens can be completely retained. Photo studio | Photo studio forum | ID photo making | Wedding photography | Fast developing photos | Learning photography | Digital camera communication |PS photo processing |PSD layered material.

2. The home fool machine cannot be equipped with UV mirror, which is only equipped on the lens of SLR camera. Just screw the thread in place. Ordinary low-grade UV mirror 20-50 yuan, Kengo, Baogu and other brands are about 60- 100 yuan, and Schneider brand is more expensive. Kengo UV mirror quality and oral quality are good, the price is between 60-80 yuan. I recommend it to you.