Hoya Neutral Density X4 52mm
Neutral Density filters (ND) filters are often ignored by photographers, but they have several uses and offer the the possibility to achieve otherwise unacheivable results. ND filters appear grey and reduce the amount of light reaching the film, they have no affect on colour balance. They have 4 main uses:i) To eneable low shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, car