This Benro Hard Grad 0.9 ND filter is a 100x150mm 3 stop graduated neutral density filter with a hard transition from being transparent on one end to being light-stopping on the other. This makes it a good choice when working with a horizon line or scenes where there is a hard transition between sky and foreground. Designed for durability and high performance, this scratch-resistant filter is constructed of ultra-flat HD Schott glass to maintain sharpness and prevent vignetting. An ULCA (Ultra Low Chromatic Aberration) coating reduces unwanted reflections and chromatic abberations to support working in difficult backlit conditions while a WMC coating aids easy cleaning of the filter in the field. As a Benro gray gradient filter is superior in its colour reproduction, multiple filters can be stacked without post processing. This filter is 2mm thick and designed for use with the separately available Benro FH100 Filter Holder, however is usable with most 100mm filter holders. The filter comes supplied with a soft protective pouch, which in turn is packed in a hard plastic case for storage and transportation.