K&F Concept Metal Square Filter Holder

Material: made of aviation aluminum by CNC-body processing,the surface is black sandblasted The connection between the aluminum holder and the camera lens is front side, the overall structure is arc-shaped, and the protruding portions on both sides are clips. All nut parts of the bracket are made of copper and plated with black nickel, which is more durable and reduces the effect of stray light on imaging. Suitable lens:fits for wide angel lens with focal length bigger than 18mm Suitable filter size:This filter holder can only for filter with a width of 100mm and a thickness of 2mm,and could hold 2 filters