Buy from Amazon.com : http://fave.co/1bEiJeG
Marumi 67mm 67 DHG Vari ND ND2 to ND400 400 Neutral Density Fader Filter Japan Digital High
Product Description :
Marumi brand DHG Variable ND2 to ND400 Neutral Density Filter
Steplessly adjust from ND2 to ND400
ND2 to ND400 Exposure Factor 2 to 400 1 to 9 F-stops
Double threaded metal frame
Made in Japan