Canon EXTENDER RF 1.4x Teleconverter Lens

The Canon Extender RF 1.4x is a precision-engineered teleconverter designed to extend the focal reach of compatible Canon RF telephoto lenses by a factor of 1.4x. For wildlife, sports, and press photographers who need to close the distance to their subjects, this extender transforms a 500mm lens into a 700mm optic while occupying a fraction of the space and weight that a dedicated super-telephoto lens would require. Canon's advanced optical design ensures that the additional magnification introduces minimal degradation to image sharpness, contrast, and color accuracy — a critical consideration for professionals who cannot compromise on output quality.

At just 7.9 ounces and measuring under three inches in length, the RF 1.4x extender slips between the camera body and lens without significantly altering the handling balance of the setup. Full electronic communication is maintained, so autofocus, image stabilization, and EXIF data continue to function as expected. The extender is built to the same environmental standards as Canon's L-series glass, making it reliable in rain, dust, and temperature extremes. The primary consideration is the one-stop reduction in maximum aperture, which photographers should factor in when shooting in challenging light or when their lens already operates near the camera's AF sensitivity threshold.