The 40.5mm Magnetic Essential Kit by Urth is a versatile set of lens filters designed specifically for photographers looking to expand their creative possibilities. This kit includes various types of filters, including UV, CPL (Circular Polarizing), and ND (Neutral Density) filters, covering a wide range of photographic applications. The filters are designed as screw-on filters, providing easy handling and secure attachment to lenses. The UV filter protects the lens from dust and scratches, while the CPL filter reduces reflections and enhances color saturation. The ND filters, both ND8 and ND1000, allow control over the amount of light hitting the sensor, which is particularly beneficial in bright lighting conditions. With this kit, photographers can optimize their shots and achieve creative effects, whether in landscape, portrait, or architectural photography. The magnetic attachment ensures quick and hassle-free mounting and dismounting of the filters, increasing flexibility and efficiency while shooting.