Bower FT52C6 Professional 52mm 6x Specialty Cross Filter for Canon, Nikon, Sony, Olympus, Panasonic, Pentax and DSLR Cameras Special finely-etched cross pattern on filter surface generates multi-beam light pattern Brighter light sources deliver a stunning, more pronounced effect High-quality construction with seamless twist-on design Compatible with high-speed and autofocus lenses Ability to turn filter mount for different orientation of star effect