"Rotating the outer ring allows you to control density from ND2.5 to ND450 - 1.3 stops to 8.7 stops"
"Excellent for photographers and filmmakers needing to precisely control exposure in bright and challenging conditions."
"Eliminates color shift throughout the density range by taking advantage of an exclusive Depolarization layer in the optical design to produce the most color consistent variable neutral density filter."
"Produces Sharp and Glare-free images by using only the highest quality Japanese optical glass ultra-thin polarization films and proprietary Hoya mulit-coatings."
"Front filter threads accept additional filters original lens caps and also works with most manufacturers lens hoods"