Item Type: 58mm Vortex Prism Filter Weight: 164g/5.78oz Material: Optical glass Number of Coating Layers: double sided multilayer coating Package List 1 x Filter 1 x Storage Bag 1 x Cleaning Cloth 1Function: By changing the focus area of the light, makes the picture appear vortex and distortion, the middle of the picture is clear, and the surroundings are distorted and blurred. Vortex effect can make the shoot picture have a visual shock. 2MRC Coating: MRC coating contains a super hard metal compound composition, which can prevent the filter itself from being scratched by hard objects such as gravel, ensuring that the filter can provide long term effective optical performance. 3Soft Light Feature: It can produce a divergence and distortion effect around the focus, producing a dreamlike blur effect, while bringing more light impact. 4Usage Scenario: Suitable for video, portrait, still life scenery, etc., a refraction mirror can make your photos or videos full of story sense, compatible with digital SLR cameras. 5Waterproof Feature: The surface of this filter is delicate and smooth, such as water drops on the mirror, without leaving traces, and easy to clean, favored by photographers, CNC accuracy molding processing, non slip texture. 6Anti Oil Performance: Anti oil coating layer, so that the surface of the lens is smooth, not easy to stain, effectively protect the lens, suitable for photographers in the harsh environment at ease to create.