Sigma USB Dock UD-01

Simga USB dock is used to progam your lens and update firmware and other parameters such as fous and preset on the lens. List price is aboout $50.00, I'm selling this for $25.00

• Sigma Optimization Pro software in order to connect a photographers lens to their personal computer to update firmware and other parameters such as focus, and for the Sports category
• Compatible Lenses 35mm F1.4 DG HSM, 17-70mm F2.8-4 DC MACRO OS HSM / 17-70mm F2.8-4 DC MACRO HSM, and 120-300mm F2.8 DG OS HSM

Continental United States sales only
Thanks for looking