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. 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 100-400mm f/5-6.3 DG DN OS Contemporary 45mm f/2.8 DG DN Contemporary 14-24mm f/2.8 DG DN Art 24-70mm f/2.8 DG DN Art 35mm f/1.2 DG DN Art 60-600mm Sport The UD-11 USB Dock can be used to update firmware on the following lenses, teleconverters, and mount converters: 14mm f/1.8 DG HSM Art 20mm f/1.4 DG HSM Art 24mm f/1.4 DG HSM Art 28mm f/1.4 DG HSM Art 35mm f/1.4 DG HSM Art 40mm f/1.4 DG HSM Art 50mm f/1.4 DG HSM Art 70mm f/2.8 DG Macro Art 85mm f/1.4 DG HSM Art 105mm f/1.4 DG HSM Art 135mm f/1.8 DG HSM Art TC-1411 1.4x Teleconverter TC-2011 2x Teleconverter MC-21 Mount Converter
