This is the Marumi DHG Light Control ND Filter 40.5mm [DHG40LC8] Marumi digital high grade filters have been specially designed with digital photography in mind. Each filter uses a specially developed ultra-low reflection coating to minimize internal reflection off the cameras built-in CCD and cmOS Sensors. Other anti-reflect features include a special slim frame with satin smooth finish and a black ink process on the glass edge to eliminate flare. Neutral density filter to reduce light volume, allowing the photographer to use slower shutter speeds under bright conditions, giving more control and creativity. Features thin mount and ultra-low reflection coating and avoids vignetting when used with wide angle digital lenses. Available sizes: Marumi DHG Light Control ND Filter 37mm (DHG37LC8) Marumi DHG Light Control ND Filter 40.5mm (DHG40LC8) Marumi DHG Light Control ND Filter 43mm (DHG43LC8) Marumi DHG Light Control ND Filter 46mm (DHG46LC8) Marumi DHG Light Control ND Filter 49mm (DHG49LC8) (061063) Marumi DHG Light Control ND Filter 52mm (DHG52LC8) (061070) Marumi DHG Light Control ND Filter 55mm (DHG55LC8) (061087) Marumi DHG Light Control ND Filter 58mm (DHG58LC8) (061094) Marumi DHG Light Control ND Filter 62mm (DHG62LC8) (061100) Marumi DHG Light Control ND Filter 67mm (DHG67LC8) (061117) Marumi DHG Light Control ND Filter 72mm (DHG72LC8) (061124) Marumi DHG Light Control ND Filter 77mm (DHG77LC8) (061131) Marumi DHG Light Control ND Filter 82mm (DHG82LC8) (061148) ...Contact us if you need more help.