【4x star cross effect】The star filter can shape the light captured in your picture into twinkling stars. From illuminations to fireworks and stars, this starburst filter is effective on different light sources. Cross Screens add a dramatic 4X flare to light sources giving a soft-focus effect. | 【Rotatable front frame】This filter comes in a rotating mount for placement of the star effect. The orientation of stars do affect the composition of your image. By turning the front frame, you can change the angle of the cross pattern. All our filters are double-threaded for stacking filters or using screw-in lens caps. | 【Creative applications】Smaller, pointed light sources will create more of a star-like effect while larger dimmer light sources will bloom or halate. In the absence of strong light sources in the composition, the star flare filter produces a soft effect in your image, creating a dreamy atmosphere. | 【Professional manufacturing】The twinkle effect is created by a series of closely-spaced, thin lines etched into the flat surface of an otherwise piece of clear optical glass. Our consciously designed ultra-slim aluminum alloy rim (4mm excluding thread) avoids vignetting. | 【Warm tips & warranty service】This filter can be attached to any 77mm lens. Please verify your lens thread size on your camera indicated by the symbol "Ф" (diameter) before ordering. We believe in delivering excellent customer service and do everything possible to satisfy our customers. If you have any questions, please feel free to contact us.