Adopt high quality aluminum alloy and optical glass material, firm and durable, provide longer service life. Fitment: for for Nikon for Sony for Olympus for Fuji ,camera lens with 52mm/ 2.0in interface. Multilayer nano coating technology, the lens has waterproof, oilproof, , antiscratch properties, protect the lens from dust scratch damage. The gradient grey filter can be used to reduce exposure, makes the picture more clear. The gradient orange filter is mainly used for shooting sunrise and sunset, which can make the original monotonous scene become more layered and dynamic. Gradient green filter is suitable for grassland, woods, green leaves, background color, highlight the corresponding shooting protagonist.