K&F Concept 3pcs 37mm Neutral Density Lens Filter Kit ND2 ND4 ND8 Compatible with Panasonic LUMIX DMC-LX7 + Microfiber Lens Cleaning Cloth + 3 Slot Filter Pouch Package includes: K&F Concept 37MM ND2+ND4+ND8 + Microfiber Lens Cleaning Cloth + Filter Pouch The filters are double-threaded, so you can stack your lens cap and other accessories as needed. Great for portraiture and outdoor scenes in strong sunlight. Reduces the amount of light reaching the film without affecting the color.Applies slow shutter speed under strong sunlight exposure. Allows wider apertures, effectively decreasing depth of field. Compatible with the Olympus PEN E-PL2 E-PL3 E-PL5 E-PL6 E-PL7 and OM-D E-M10 Compact Cameras w/ 14-42mm f/3.5-5.6 II zoom lens. Brand of K&F Concept manufactured by a professional team.