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Description:
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.
