Note:This kits can only suitable for PAIA®3rd GenerationWide angle and . Can not be used alone, nor match the es of other brands!!!!!!!!Switzerland ed: High quality opticala reduces light reflection around edge, putting an inexpensive resin filter in front of a is not a great idea.Excellent Flatne: Top grade optic gla minimize glare, reflection, ghosting and other artifacts for the most stunning, crystal clear photos poible.High Precision: Low profile frame, ul thin frames to help avoid vignetting on wide angle es, if you lovedscape , this filter will be one of your best friends !1. Circular Polarizing Filter is great for removing unwanted reflections from non-metallic surfaces such as gla or water.Take richer scenic shots and notice improved clarity in distant objects by through haze and increasing color saturation.2. Star Filterstar filter are ideal for ing lighting within the scene take on a more glittering, glamorous appearance. Especially it is magic to your night shots, city skylines, street scenes, lamp posts, streetlights, car headlights, lights, any p there's sources of points of light.Great effect, especially on street lighting or something like mas. It will create a cro, snowflake type radiance which radiates outward from bright highlights, lights. Great for photographing jewelry, crystals, gtone close-up work or other lighting special effects.3. Gradual BlueGradual Blue Filter usually use for bule sky, cloud and vast sea picture, s the sky and sea more blue.4. GraduarayGeneral used for balance the dark side of the picture, changing the mood of a picture.5. ND filter ND filter are used to reduce the quantity of light that reaches the r of the smart phone 's camera, it allows to decrease the shutter speed in order to achieve motion blur and or to reduce depth of field in very bright conditions.Perfect for shooting water flow, ffic flow, ocean, Clouds, human stream and other moving photography.