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.
Focus Settings:
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).
Sports Line:
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. | |||||||
