Rf 1.4x Extender

1.4x magnification: It multiplies the existing focal length of a compatible lens by 1.4x. For example, a 600mm lens becomes an 840mm lens. One-stop light loss: This increase in focal length comes at the cost of one stop of light, meaning an f/8 lens will become an f/11 when the extender is attached. High image quality: Built with high-refraction, low-dispersion glass, the extender minimizes chromatic aberration and ghosting. This helps to maintain image sharpness and contrast. Full lens communication: The extender retains full electronic communication between the lens and camera body, ensuring that metering, autofocus, and image stabilization (IS) all function effectively.