Sigma UD-11 USB Dock for Canon EF-M BOSE TTL Wireless Flash Function

TTL Wireless Flash Function

Rotating Tripod Collar

Elegant Soft Opening

Displays that adapt to you - Customisable info displays let you quickly adjust settings

Customizable Control - The smooth click-less control ring can be customized for the way you shoot

Sigma UD-11 USB Dock for Canon EF-M BOSE TTL Wireless Flash FunctionSigma UD 11 USB Dock for Canon EF M Compatible with Select EF M Mount Lenses Use with Sigma Optimization Pro Software Update Lens Firmware and Adjust Settings USB Type C Port 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