Tiffen: .Circular Polarizer: It will reduce unwanted highlights (reflections) and saturated colours. It also produces a deeper sky- blue, improves contrast and enters the reflection. .ND.3 Solid: Control of exposure or depth of field, without affecting contrast o r colour. It underexposes 1 point of light in the image. .ND.6 Solid: Idem. It underexposes 2 points of light in the image. .ND.9 Solid: Idem. It underexposes 3 points of light in the image.   Schneider Filters: .ND.3 Soft Degradé: It will balance light  ,avoiding overexposed parts of the scene. It underexposes 1 point of light, only in half (50%) the filter surface. .ND.6 Soft Degradé: Idem. It underexposes 2 points of light, only in half (50%) the filter surface. .ND.9 Soft Degradé: Idem. It underexposes 3 points of light, only in half (50%) the filter surface .Black Frost ½: It will improve  skin appearance and reduce brightness, with no degradation of the quality of the image and no saturation of the blacks. This filter is recommended to reduce the high level of sharpness in high definition images.** .SkinTone Enhancer: It will add  warmth to the skintones.  Ideal for romantic scenes.**   **By combining these filters, skins with softer features and a subtle colour saturation can be obtained.