Extend the reach of your zoom without exposure loss. The 1.6X Tele- Converter is a front mounted accessory that also provides greater telephoto reach. Use it to instantly shift the focal length range of your camera in the telephoto direction. The perfect tool when it's inconvenient, dangerous or impossible tomove as close to the subject as you would like. Note that the Tele-Converter offers partial zooming, vignetting will start to occur at approximately mid-range and increase through the zoom back producing a port hole effect at the full wide angle position.