Sigma UD-11 USB Dock for Leica L
Sigma USB Dock for Nikon F-Mount Lenses
Compatible with Select L-Mount Lenses
Use with Sigma Optimization Pro Software
Update Lens Firmware and Adjust Settings
USB Type-C Port
Adjust and update select Sigma L-mount lenses, teleconverters, and mount converters with the UD-11 USB Dock. Used in conjunction with Sigma's Optimization Pro software, this useful accessory can be used to update lens firmware as well as adjust the amount of focus movement and MF timing when operating the focus ring.