UV (Ultra Violet) absorbing filters are practically neutral in color effect. They transmit visible light without hindrance while cutting out ultraviolet radiation. Due to the short wavelength, UV is highly scattered and has a high intensity in hazy conditions as diffuse radiation. A color film reacts with a blue-violet veil, while B&W film gives the sky a brighter look, reduces contrast in the clouds and makes distance views pale. UV filters prevent this: the colors remain pure and distance views become clearer and crisper. You do not need to extend the exposure time. A UV filter can also be used as a lens protection, e.g. against water splashes, sand, etc.
Crystal Optics filters are manufactured from the finest solid optical glass, and are heat treated and multi-coated to ensure optimum picture quality. |
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