Description de Produit
- N° de Modèle: UV25~82
- Trademark: MINI
- Standard: GB/T9917-1988
- Production Capacity: 500,000 pcs/year
Ultra Violet, which manifests itself in photographs as reduced clarity and the appearance of haze, is blocked by the UV filter. Ultraviolet light is invisible to the eye and is strong in mountainous and coastal areas with very clear air. This makes the colorless UV filter an indispensable filter because it requires no exposure compensation. It is recommended as an ideal filter to be kept permanently on the lens to protect the front element. Filter factor is 1. 0.
Color conversion filters balance the spectral composition of the photographic light source to the temperature balance of photographic films. This color temperature is expressed in degrees Kelvin ("K"). High color temperature light becomes blue while low tends to have a reddish tone. Depending upon the degree of necessary color temperature conversion, reddish to brown or blue- toned, color conversion filters in varying density are required to absorb the predominant color tones of the light.
The UV filter should remain on the video camera lens to reduce the haze from UV light and to protect the lens. There is no effect on the white balance of the camera.
Several filters are available to achieve authentic documentation of museum type objects, art reproductions, etc. Which require a delicate balancing of light and film. True-to-life color reproduction depends upon taking a color temperature measurement which provides the precise determination of the necessary filtration.
Remarks: OEM welcome