Heliopan 86mm UvaThe UV or Haze filter is not only an excellent filter for visually improving images on both digital and film but it can always stay on the lens to protect it from fingerprints, dust, moisture, etc. It absorbs the short wave portion of the spectrum so in hazy conditions a better image of the scene is possible. Loss of sharpness from UV Rays and the blue tones common in infinity scenes are eliminated. No exposure correction is needed. Available in both standard and SH-PMC coatings.
The UV protection blocks UV radiation in daylight. In addition colors are improved especially in the blue and red channels. Since artificial light contains especially high IR radiation the filter ensures better control of the blue channel. This dichroic coated specialty filter should not be used with extreme wide angle lenses.