【Includes】 K&F CONCEPT 49mm Adjustable Neutral Density Professional Photography Filter ND2~ND400 + 18 Pcs Camera Lens Filter Adapter Rings.
【Material】49mm Variable ND Filter Made by Completed Professional Optical Glasses instead of Optical Resin, 18 pcs filter adapter rings including 9 step down rings + 9 step up rings for filter.
【Professional Design】 ND2-ND400 lens filter ultra slim enough ensruing no vignetting and with CNC non-slip design to help install and take up filter easily.
【9 Step Up Rings】Include Step Up Filter Adapter Ring Kit(37-49, 49-52, 52-55, 55-58, 58-62, 62-67,67-72, 72-77, 77-82mm)
【9 Step Down Rings】Include Step Down Filter Adapter Ring Kit(49-37, 52-49, 58-55, 55-52, 62-58, 67-62,72-67, 77-72, 82-77mm )