100-day warranty. Very good condition, tested and works as expected. See photos for more info.
A precision screw-in teleconverter that doubles the effective focal length of a compatible telephoto lens, so a 300 mm becomes 600 mm, giving you far greater reach without switching lenses. The converter uses optical elements designed to preserve as much of the original lens’s sharpness and contrast as possible, while a BBAR (broad-band anti-reflection) coating reduces flare and ghosting in bright or backlit scenes.
