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, 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. Sigma Photo Pro is available for Mac and PC computers.
Updating Lens Firmware: It is possible to update the lens firmware via the internet.
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).
Full-time MF Setting:* It is possible to adjust the timing to operate the Full-time MF function by customizing how much rotation of the focus ring is required.
* Not compatible with 17-70mm F2.8-4 DC MACRO OS HSM C013、18-200mm F3.5-6.3 DC MACRO OS HSM C014、18-300mm F3.5-6.3 DC MACRO OS HSM C014、18-35mm F1.8 DC HSM A013、30mm F1.4 DC HSM A013、24-105mm F4 DG OS HSM A013、35mm F1.4 DG HSM A012、120-300mm F2.8 DG OS HSM S013.
For Sports Line*:
AF Speed: 3 adjustment modes.
Focus Limiter: Customize auto focus range.
OS: 3 adjustment modes.
* Also compatible with the 150-600mm F5-6.3 DG OS HSM C015, 100-400mm F5-6.3 DG OS HSM C017.
The Sigma Optimization Pro can be downloaded at the Sigma Global Vision site.
In the video secion on this page you can get acces to 7 tutorial videos explaing the benefits and opportunities with the Sigma USB dock.