B+W ND Filter Gray 103, 52 mm. Type 103 reduces the light by exactly three f-stops, filter factor 8x. By increasing your aperture or slowing your exposure time, you can control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters. At lower shutter speeds, creative soft focus effects, wipe effects and flowing effects for waterfalls can be achieved. Opening the aperture allows selective focus instead of deep focus – a desired effect when filming videos with DSLRs.
Video - B+W ND Filter