Canon Extender RF 2x - 4114C002Short Description RF Mount Teleconverter 2x Magnification Factor Maintains Metering, Autofocus, and IS Dust and Water Resistant In The Box Canon Extender RF 2x Canon Extender Cap RF Canon Lens Dust Cap RF Canon Lens Case LP811 Limited 1 Year Seller Warranty Long Description Extend the reach of select Canon RF mount lenses with the Extender RF 2x. This teleconverter magnifies the image by 2x and retains full communication between the lens and camera