Opteka 30mm High Definition II UV (0) Ultra Violet Haze Multi-Coated Glass Filter Coated: Multi-Coated Features: The UV filter is one of the most important filters to own and it should be available for every lens. The filter blocks the invisible UV rays which can cause a loss of sharpness. The use of the filter is particularly recommended for work in the mountains, at the ocean, and in areas with very clear air. The contrasts are heightened, and distorting fog is avoided. The Opteka HD² Multi-Coated UV (0) Ultraviolet Haze Filter cuts haze for sharper black and white prints and corrects the blues and violets in color prints. The filter glass is colorless, and hence no increase in the exposure time is required. Multi-coating can prevent light reflection, ghost light, internal reflection etc, making image clearer and sharper. It can dramatically improve image quality. This is specially important in digital cameras. Since the image sensors CC...
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