Studio : JJC Publisher : JJC Binding : Electronics Product Description
The JJC F-NDV Series Variable ND filter is designed with a built-in rotating ring that controls neutral density ranging from ND2 to ND400. The heavier the density, the slower your shutter speed will be. It can reduce the amount of entering lights, but it does not change the original colors, which enables you to represent the photographic field. Another major benefit of this variable ND filter is the elimination of having to buy and carry around individual neutral density filters. With this one filter, you can rotate to the degree of ND you want - a real time and money saver. Why we need a Neutral Density Filter? -- It enables slow shutter speeds to be used, especially with high speed ISO, to record movement in subjects such as waterfalls, clouds. -- It decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background -- It decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situation -- It allows cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure 0 |