Get closer to distant subjects with Canon's 1.4x RF multiplier. Featuring smart hookup, this extender attaches seamlessly to select RF series lenses and increases focal length by a factor of 1.4x to help you increase your reach without compromising overall quality or performance. Designed with all-new high-refractive, low-dispersion glass to reduce chromatic aberrations and featuring optimized coatings that reduce ghosting, this powerful extender is the ideal choice for sports and wildlife photographers. Plus, with a dust- and water-resistant design, including a heat-resistant exterior to prevent overheating, the 1.4x RF Extender is a durable and versatile addition to your gear bag.