Do digital cameras require the use of UV lenses
In fact, nowadays digital cameras have UV/IR Cut filters in front of their image sensors. UV lenses are used in new digital cameras and no longer have their original optical correction function, which can block ultraviolet and infrared rays that affect the image. Therefore, adding UV (Ultraviolet) filters in front of the lens is actually a repetition, and generally does not significantly improve the image effect. However, it is still an important protective filter for many people because it can protect the lens. However, it should be used carefully and not dirtied, otherwise it will have a negative impact on the imaging.
The function of UV filters
In the era of film photography, ultraviolet filters were used to reduce color differences on sunny days, as film reacted to ultraviolet radiation, resulting in blue color differences. However, digital cameras rarely have this problem. However, due to the ultraviolet light waves brought by the sun, it is easy to collide with particles in the air and scatter, or it may be due to the presence of more water in the air that blurs the image. In principle, this can be improved through ultraviolet filters, but the effect may vary depending on the actual situation. Most of them can be used to take landscape photos, such as improving the clarity of distant landscapes. In recent years, some manufacturers have specifically produced filters to block ultraviolet light with wavelengths of 390nm or shorter, in order to enhance this effect.
Whether or not you use a UV filter, if you accidentally touch it with your fingers and leave stains, it can also affect the quality of the image, causing internal reflections, spots, or fogging. Therefore, do not assume that adding UV lenses will definitely affect the quality of the image. Actually, the usage habits of the equipment are more important Since the sensors of digital cameras have already been equipped with ultraviolet and infrared filters, in principle, there is no need to use ultraviolet filters. However, today UV filters are more important for protecting the lens, especially for many photographers who mind scratching the mirror surface or do not want the front lens to be stained with grease and directly wipe it with a cloth. Therefore, adding one less optical UV filter, once it is stained with dirt or fingerprints, wipe it off directly. If there are scratches, simply replace it with a new one.
For many photography enthusiasts, although they should be able to achieve the best quality of their lenses without filters, mirrors are never naked, so they will buy a new protective lens with ultraviolet filters. Fortunately, many filter manufacturers are constantly improving their filtering technology to improve the optical performance of filters, such as using multi-layer films to reduce internal reflection, increase transmittance, adding hard coatings to lenses, preventing cut flowers, water and oil stains, and removing UV has become secondary. Therefore, many people still believe that since a clean and high-quality filter will not affect the image quality, why not install it first, and once it gets dirty, you can remove it and continue shooting. Compared to the fact that mirrors are dirty and unclean, at least it won't cause rare cameras to collapse.
The function of UV filters
In the era of film photography, ultraviolet filters were used to reduce color differences on sunny days, as film reacted to ultraviolet radiation, resulting in blue color differences. However, digital cameras rarely have this problem. However, due to the ultraviolet light waves brought by the sun, it is easy to collide with particles in the air and scatter, or it may be due to the presence of more water in the air that blurs the image. In principle, this can be improved through ultraviolet filters, but the effect may vary depending on the actual situation. Most of them can be used to take landscape photos, such as improving the clarity of distant landscapes. In recent years, some manufacturers have specifically produced filters to block ultraviolet light with wavelengths of 390nm or shorter, in order to enhance this effect.
Whether or not you use a UV filter, if you accidentally touch it with your fingers and leave stains, it can also affect the quality of the image, causing internal reflections, spots, or fogging. Therefore, do not assume that adding UV lenses will definitely affect the quality of the image. Actually, the usage habits of the equipment are more important Since the sensors of digital cameras have already been equipped with ultraviolet and infrared filters, in principle, there is no need to use ultraviolet filters. However, today UV filters are more important for protecting the lens, especially for many photographers who mind scratching the mirror surface or do not want the front lens to be stained with grease and directly wipe it with a cloth. Therefore, adding one less optical UV filter, once it is stained with dirt or fingerprints, wipe it off directly. If there are scratches, simply replace it with a new one.
For many photography enthusiasts, although they should be able to achieve the best quality of their lenses without filters, mirrors are never naked, so they will buy a new protective lens with ultraviolet filters. Fortunately, many filter manufacturers are constantly improving their filtering technology to improve the optical performance of filters, such as using multi-layer films to reduce internal reflection, increase transmittance, adding hard coatings to lenses, preventing cut flowers, water and oil stains, and removing UV has become secondary. Therefore, many people still believe that since a clean and high-quality filter will not affect the image quality, why not install it first, and once it gets dirty, you can remove it and continue shooting. Compared to the fact that mirrors are dirty and unclean, at least it won't cause rare cameras to collapse.