Another use of the ND16 would be controlling depth of field. With a strong ND16, a much wider aperture can be used. Wide apertures like F/1.4 and F1.8 create a very shallow depth of field and have the effect of isolating the subject from the background. Creative possibilities are endless with this type of filter. Digital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections. Filters feature a black matte aluminum satin finish almite frame which reduces reflections. These filters are equipped with black rimmed glass to reduce the chance of light reflecting off the edge. Ultra thin filter frames to help avoid vignetting on super wide angle lenses are also designed to hold a lens cap. These filters are equipped with a straight knurling edge for non-slip, easy attachment and removal. Filter cases are UV protected to further lengthen the life of filters.