Hoya Star 4X Filter The Hoya Star 4X filter helps create more drama in your image by turning strong point-light sources into four-pointed stars. There is also an overall softening effect throughout the entire image when using this filter. Control the direction of the points by rotating the filter. The Hoya Star 4X / Cross Screen filter is helpful when: The specular highlights in your image need more drama Cars, signs, and street lamps with strong specular highlights Softening the entire image Smaller, pointed light sources will create more of a star-like effect while larger dimmer light sources will bloom or halate. Highlights: Creates a four-point Star effect from point light sources Turns specular highlights into four-point stars Stars have longer blades than the Sparkle series. Works well on cars, signs, and street lamps at night Works best with subjects with strong specular highlights Softens image overall Features: Zero Filter Factor Hoya Clear Glass Type Zero Number of Multi-Coatings No Hardened Top Layer No Anti-Static Standard Profile / Aluminum Frame Construction Front Filter Threads Size: 55mm Materials: Aluminum, Hoya Optical Clear Glass Manufacturer SKU: A-5825A-GB In The Box: Hoya 55mm Star 4X FilterPlastic Filter CaseLimited 1-Year Manufacturer Warranty