Sigma is introducing a new service that enables photographers, who have purchased specific Sigma lenses to switch their mounts on their lenses. Ranging in price from $80 to $250, depending on the lens, the service allows photographers to convert to Sigma, Canon, Nikon, Sony, Pentax, Micro Four Thirds and Sony Emount and includes return shipping to the photographer.
For details, contact Sigma America Service dept. via email at Info@sigmaphoto.com or by phone: 631-227-2036. Outside of the U.S. please contact your nearest country representative directly: http://www.sigma-photo.co.jp/english/network/index.html.