UV filters are suitable for shooting in seashore, mountain, snowfield and open area, and can reduce the blue tone caused by ultraviolet radiation. At the same time, for the camera, it can also eliminate the interference of ultraviolet radiation on the CCD, which helps to improve the clarity and color restoration effect.            CPL is a filter commonly used in landscape photography, eliminating unnecessary polarized light, making the whole picture clearer and more transparent.            Using this filter, ND can obtain more freedom of controlling aperture and shutter, bring more exposure means and creation space for photographic creation, and effectively prevent overexposure. The number behind ND represents the ability of ND mirror to block light.            Starlight mirror, also known as light mirror or scattering mirror, is a special kind of filter. Different types of vertical and horizontal stripes are carved on the glass of star mirror by etching method. Under the action of point light source, the light spot in the scene can be diffracted, so that each light source point in the photograph can emit special features. Fixed beam of light, in order to achieve the effect of four rays of light.            A starlight mirror is simply a filter with a shallow mesh groove on its surface. Star lenses can soften the image slightly. They can turn the light source in the picture into many stars, create a romantic and childlike mood, and increase the artistic effect of the photos. They are really necessary filters for photographers.            Cross lenses can produce cross light. They emphasize the reflection of bright sunlight from the sea and the effect of lights at night that shine like diamonds. Long lenses need longer focal lenses.            When the shutter is fast and the aperture is unchanged, the star effect of the lamp can still be obtained, such as shooting night scenes in hand, or shooting a portrait at a party with the same star effect as when shooting a portrait! Rotating lenses to change the direction of the stars!            The Role of Starlight Mirror            1. Starlight mirror, used to achieve beautiful star effect.            2. After using the starlight mirror, the point light source in the picture will emit beautiful stars. In many cases, the star can bring a fantastic and romantic effect to the whole picture. It is often used in wedding photography and night scene shooting.