GoPro 3+/4 camera external style filter mount plus 52mm True Didymium™ filter ring. Black anodized aluminum external style filter mount fits the GoPro 3+/4 series cameras. See additional product details below. NOTE: DOES NOT INCLUDE CAMERA!
Neutral density filters for various cameras mounted in standard sizes. Adjustable neutral density filters in 9 steps from ND2 to ND 400. 18-layer nano-thickness multi-coated filters in fixed ring sizes.