The landscape filter kit includes: soft Graduated ND8 (3 F-stops) soft Graduated blue Soft Graduated tobacco 3 lens cases graduated Neutral Density (ND) filters allow you to reduce the amount of light reaching the sensor on a portion of your pictures so that you can reduce shutter speed and get some motion effect. By rotating the filter-holder you can place its effect, by sliding it up and down you can setup its intensity so that you can balance your exposure correctly. The Graduated blue and tobacco are used to transform lifeless gray skies or landscapes into dynamic creations that would otherwise not be possible to create in camera.