FeaturesWorks with Panasonic LUMIX LEICA DG ELMARIT H-ES200 Lens2.0X magnification converts 200mm lens to 400mm (E.g. H-ES200 lens converts to 400mm)When mounted, the minimum f-number will be set to a value two steps greater than the original value.Includes Authentic LUMIX branded front and rear body caps, and LUMIX branded lens pouch