K&F Concept Variable ND Filter 67mm 58mm 82mm ND2 ND400 9 Stops Neutral Density Filter ND2-400 37-49mm 52mm 55mm 77mm 62mm 72mm

NotePlease verify your camera's thread size before ordering. This number is always preceded by a "Ø"(diameter) symbol.When using the ND filter to the maximum(ND400) or bigger degree density, it will appear "X" spot or a blur in the picture, this is a normal phenomenon.(Suggestion: lower down the density value gradually and reduce the aperture, until the facula disappeared)