Buy digital video (DV), the need for a UV lens with it? What is the role of UV mirror? Let us know about UV lenses, UV English Utlraviolet (UV) abbreviation. UV microscopy main role is to filter out the ultraviolet light.
UV mirror originated in the era of traditional film cameras, because the film to light in the ultraviolet-sensitive, ultraviolet photographs have a strong cast of local phenomena, so in front of the camera lens with UV filter out ultraviolet light to correct color cast. UV lens protection and because there is the role of the lens, such as to prevent dust, fingerprints, rain, snow and the pollution of the lens, so the general will on the camera lens with a UV microscope, and mounted on top of perennial not take off, UV lens basic become a necessity.
Digital cameras use CCD light-sensitive device is not sensitive to UV, so UV lens for digital cameras, the main role is to protect the lens, so as dust, fingerprints or oil such as damage to the lens. Home video camera lens aperture is relatively small, buy a UV lens with a lower price, multi-layer coating diameter of 37 mm or so of UV lens also hundreds of dollars. There are also so-called market poor quality UV lens, in fact, an ordinary glass, the price of ten dollars or so. This lens is not UV coating, use of light will be reflected back into the lens part, and thus have an impact on quality. This, friends who wear glasses should be more able to understand, there are coated glasses and uncoated, coated glasses and good light transmission, basically do not feel the presence of the lens, there is no ordinary lens coating is different, often subject to interference from outside light to see clear, backlighting is particularly serious. If we put a DV to their non-coated "lens" is bound to affect the image quality.
Some friends asked, using the UV lens is not affecting the image quality of digital camera do? In theory, no matter how good the quality of the UV mirror or other lens attached, are more or less will affect the image quality, but good quality UV microscope imaging has little effect, negligible. We choose the UV lens, it is best to choose a professional camera store supplies UV coating on the mirror installed on the DV camera, the general single-layer coating can be, the common brand KENKO (Kenko) and HOYA (Hoya ). As a result, the lens in the lens under the protection of UV safer, dust, UV mirror files will be live, just clean up the UV lens on it.
UV mirror originated in the era of traditional film cameras, because the film to light in the ultraviolet-sensitive, ultraviolet photographs have a strong cast of local phenomena, so in front of the camera lens with UV filter out ultraviolet light to correct color cast. UV lens protection and because there is the role of the lens, such as to prevent dust, fingerprints, rain, snow and the pollution of the lens, so the general will on the camera lens with a UV microscope, and mounted on top of perennial not take off, UV lens basic become a necessity.
Digital cameras use CCD light-sensitive device is not sensitive to UV, so UV lens for digital cameras, the main role is to protect the lens, so as dust, fingerprints or oil such as damage to the lens. Home video camera lens aperture is relatively small, buy a UV lens with a lower price, multi-layer coating diameter of 37 mm or so of UV lens also hundreds of dollars. There are also so-called market poor quality UV lens, in fact, an ordinary glass, the price of ten dollars or so. This lens is not UV coating, use of light will be reflected back into the lens part, and thus have an impact on quality. This, friends who wear glasses should be more able to understand, there are coated glasses and uncoated, coated glasses and good light transmission, basically do not feel the presence of the lens, there is no ordinary lens coating is different, often subject to interference from outside light to see clear, backlighting is particularly serious. If we put a DV to their non-coated "lens" is bound to affect the image quality.
Some friends asked, using the UV lens is not affecting the image quality of digital camera do? In theory, no matter how good the quality of the UV mirror or other lens attached, are more or less will affect the image quality, but good quality UV microscope imaging has little effect, negligible. We choose the UV lens, it is best to choose a professional camera store supplies UV coating on the mirror installed on the DV camera, the general single-layer coating can be, the common brand KENKO (Kenko) and HOYA (Hoya ). As a result, the lens in the lens under the protection of UV safer, dust, UV mirror files will be live, just clean up the UV lens on it.
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