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The Sigma USB Dock works in conjunction with Sigma Optimization Pro software in order to connect a photographers lens to their computer to update firmware calibrate the lens and other customizations such as the focus parameter. For the Sports category changes can be made to. Autofocus speed focus limiters manual focus override and optical stabilization functionality. Updating the firmware can be done via the internet. Compatible with both PC and Mac.
Computer Equipment and Accessories Other Computer Accessories