iGadgitz Xtra 58mm Glass Multi-Coated Adjustable Neutral Density ND Lens Fader Filter ND2 to ND400 for SLR & DSLR Cameras Designed to reduce the amount of light entering the lens, allowing shutter speed to be reduced. Gives the ability to vary light from ND2 up to ND400 in just one filter. Universal fit for all brands of lens with 58mm thread. Features slim metal sealing ring to give better fit on the lens.