ND filter is short for neutral density filter. It’s a filter that can reduce and modify the intensity of all wavelengths or color of light equally.
The function of the this filter is to reduce the visible light at equal proportion, and won’t change the brightness and color contrast of the scene.
According to the production method, there are two types:neutral density glass and dyed resin.
According to the filter’s shape, there are 2 types:Round ND filter and Square ND filter.
1. When using ND filters in bright light environment, when using ND filter,we can enhance the subject and blur out the background through enlarging aperture and reducing the depth of field.
2. Low shutter speed photography: to express the motion of moving objects through long exposure time. For example:to make the flowing water looks like cloud/mist and to show the trace of flying cloud.
3. Eliminate the moving object in a scene. For example:to make the crowded street looks lonesome. In addition,using ND500(9 stops) or above ND filter can shoot solar eclipse.
1 x Filter
1 x Protective Bag