The Sigma USB dock works in conjunction with 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: Autofocus speeds, focus limiters, and optical stabilization functionality. Updating the firmware can be done via the internet. Sigma Photo Pro is available for Mac and PC computers.
4 Categories of customization for fixed focal length.
16 Categories of customization for zoom lenses (4 options for focal length) x (4 options for shooting distance).
AF Speed: 3 adjustment modes.
Focus Limiter: Customize auto focus range.
OS: 3 adjustment modes.
The Sigma Optimization Pro can be downloaded at the Sigma Global Vision site.
|USB DOCK COMPATIBILITY CHART|
|LENS||Product Line||Firmware Update||Focus Setting||OS||AF Speed||Focus Limiter|
|DG||35mm F1.4 DG HSM||Art||O||O||X||X||X|
|120-300mm F2.8 DG OS HSM||Sports||O||O||O||O||O|
|DC||17-70mm F2.8-4 DC MACRO OS HSM||Contemporary||O||O||X||X||X|
|30mm F1.4 DC HSM||Art||O||O||X||X||X|
|18-35mm F1.8 DC HSM||Art||O||O||X||X||X|
|OS Function, AF Speed and Focus limiter are only adjustable with the lenses with a custom mode switch|
|**DN Lenses are no compatible with the USB dock currently.|