Buy from Amazon.com : http://fave.co/1ysqEjZ
Hoya NDx2 52mm Neutral Density Lens Filter
Product Description :
Compatible with any standard 52-millimeter screw-mount lens
Reduces the amount of light reaching the film without affecting the color balance
Pictures of bright objects like snow come out clear without overexposure
Enables slower shutter speeds for recording movement such as in waterfalls
Adjusts your cameras f-stop by one stop