Canon Drop-In Variable ND Filter A (1.5 to 9-Stop) - 3446C001

Designed for use with the Drop-In Filter Mount Adapter EF-EOS R and select Canon lenses, this Drop-In Variable ND Filter A is an intuitive and sleek means for using a variable neutral density filter in conjunction with an adapted lens, especially those lenses lacking traditional filter threads, or with compatible lenses featuring a rear drop-in filter slot. This variable ND is permanently installed within a drop-in holder and has an integrated wheel for adjusting the rotation position to alter the ND effect.