The Syrp Variable ND Filter Kit Small is made up of a 67mm variable ND filter (1 stop to 8.5 stops), a Syrp genuine leather case, a Syrp Lens cloth & two step-up ring adapters (52mm to 67mm & a 58mm to 67mm). This variable ND kit means that you can limit the amount of light entering the lens by 1-8.5 stops & achieve creative shots that are otherwise impossible in camera. Photographers can now shoot in bright, sunny conditions with low apertures & slower shutter speeds. For film-making you can achieve a shallow focus allowing your subject to be sharp while the rest of your scene is blurred out. For photography & time-lapse you can achieve enhanced motion blur in bright conditions & obtain smoothed waterfall shots, glassy lake or sea shots & wispy cloud shots. There are two Syrp ND filter kits available, small (67mm) & large (82mm).