XP120 - 2X graduated neutral density filter reduces the light 1 stop.
XP121 - 8X graduated neutral density filter reduces the light 3 stops.
XP121L - 2X Light starts with the same neutral density as XP120, but feathers the grey almost from the color edge and more gently graduates to clear. One stop of compensation.
XP121M - 4X Medium is the same gentle graduation as XP121L but with twice in density. Requires 2 stops of compensation.
XP121S - 8X Soft is twice the density of XP121M and the graduation extends to 3/4 of the filter. Requires 3 stops.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 5.91 inch
Height : 0.71 inch
Length : 8.66 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 6.4 ounce (View shipping rates and policies)

ASIN : B00009R7M0