Using this handy accessory from Sigma, you can connect your compatible Sigma lens to your computer and update the firmware of the lens, the focus position and additional functions. The Sigma USB dock is a great way to get the most from your high-performance Sigma lens. AF speed, focus limiter settings and OS functionality can also be adjusted with the use of the Sigma USB Dock.

  • Compatible with select Sigma lenses
  • Keep your firmware up-to-date
  • Adjust AF speed, AF limiter & OS
  • Compatible with Downloadable Sigma Optimization Pro Software