UPC: 0024066002754 | Hoya 82mm ND4 HMC Filter

UPC lookup results for: 0024066002754 | Hoya 82mm ND4 HMC Filter

NDNeutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film. They have no effect on color balance. They have four main uses: 1) To enable slow shutter speeds to be used especially with high speed films to record movement in subjects such as waterfalls clouds or cars. 2) To decrease depth of field by allowing wider apertures to be used which helps separate subjects from their background. 3) To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. 4) To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow sand or other bright scenes which could cause overexposure. Multicoated to minimize reflection at the filter surfaces which reduces flare and ghosting. Neutral Density factors: NDx2 (exposure adjustment = 1 stop reduces ISO 1/2) NDx4 (exposure adjustment = 2 stops reduces ISO 1/4) NDx8 (exposure adjustment = 3 stops reduces ISO 1/8) HOYA HMCThese popular filters are renowned for their ability to minimise reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97% giving sharp contrast and well balanced color. HOYA HMC filters are recommended for enhancing the performance of today s multicoated lenses.