The ProMaster Digital HD ND8X has a factor of .9 which reduces light by 3 stops and has the effect of reducing the ISO to 1/8 of rating.
ProMaster Digital HD Neutral Density filters are made from premium optical glass, have 12 layers of coating to reduce reflected light and feature a super slim 4.5mm frame that avoids vignetting on extra wide lens focal lengths.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.75 inch
Height : 0.05 inch
Length : 4.75 inch

Item Weight: 2 pounds (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00M0WA29U