Lee Solid Neutral Density Polyester Filter Set - This kit contains three Lee Solid Neutral Density gels: .3 (one stop), .6 (2 stops), and .9 (3 stops). This set also contains the Lee Gel Snap. The Gel Snap is Lee's easy and affordable filter holder. Simply insert your 4 x 4" filter, snap it shut, and "snap" it on to any lens 82mm or smaller using the included "Elastomeric Tension Device", also known as an "E.T.D.", i.e, rubber band.
Neutral Density filters offer the possibility to achieve otherwise unachievable results. ND filters appear gray and reduce the amount of light reaching the film. They have no effect on color balance. Lee polyester filters are made from lightweight, optical polymeric materials.