Nikon TC-E15ED Tele-Converter Lens Increases the focal length of the camera 1.5x Maximizes the zoom ratio when the camera is at maximum zoom For exclusive use with the Coolpix 5700 and 5400 Requires UR-E9 converter adapter for use with the Coolpix 5400 Requires UR-E8 converter adapter for use with the Coolpix 5700