CINE 4x4 Neutral Density Filters offer the possibility to achieve otherwise unachievable results. CINE 4x4 Neutral Density Filters value : 0.3, 0.6, 0.9 , made of Optical glass and multi coated .
FEATURES : CINE ND Filters appear grey and reduce the amount of light reaching the film. The deeper the color the stronger the effect. But without effecting the color balance.
CINE ND Filters are used to produce precise attenuation of control light intensity. CINE ND Filters reduce transmission evenly across a portion of the spectrum and can be used for laser attenuation in industrial applications. These filters prevent blooming or overexposure of cameras and other detectors.
CINE ND Filters give more of a neutral gray without the spectacular effects from the particular coatings of the current neutral density and neutral density graduated filters, which allows the user more precise control.
Occasionally, it is possible that a correct exposure cannot be achieved even with the smallest aperture and fastest shutter speed.
CINE ND Filters enable slow shutter speeds by reducing the intensity of light so that a photo can be taken within the limit of one's camera, especially with high speed films. CINE ND Filters are used to decrease depth of field by allowing wider apertures.
CINE ND Filters are used to decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations. CINE ND Filters allows cine and video cameras (which have fixed shutter speeds) to film the bright scenes which could cause overexposure. In addition to blocking varying amounts of light.
CINE ND filters can be purchased with either a hard edge or soft edge used to describe the transition between the dark and the clear portion of the filter. The hard edge is a sudden transition, perfect when you have a nice defined change in light. A soft edge is a more gradual transition.
CINE offers a holder which screws onto the front of the lens and allows for precise placement of the filter. If there is facility of depth of field preview button, this can be very helpful when positioning the filter. It is much easier to see the transition when the preview button is held down.
TECHNIQUE : If a shutter speed is kept the same, a larger aperture must be used after adding the ND Filter to obtain the same exposure.
Similarly, if an aperture is kept the same, a slower shutter speed must be used to obtain the same exposure.
After adding a ND filter, the exposure value is
reduced because there is less light passing through the lens. Thus, if we want to keep the original shutter speed (without using a ND filter), aperture has to be wider; or, if we want to keep the original aperture, shutter speed must be slower. Precisely CINE ND Filters allows a photographer greater flexibility to change the aperture or exposure time according to his own desire allowing for more control and precision particularly in extreme circumstances. Using these filters all the time is a one trick of the trade which a person couldn't do without