Sigma USB dock UD-11 Canon EF-M

Adjust and update select Sigma EF-M-mount lenses 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.

Lens Compatibility
The UD-11 USB Dock can be used to update firmware as well as fine-tune the manual focus operation timing adjustment on the following lenses:

16mm f/1.4 DC DN Contemporary
30mm f/1.4 DC DN Contemporary
56mm f/1.4 DC DN Contemporary