The Sigma USB Dock for Canon EF mount allows you to update / adjust compatible Sigma Global Vision lenses using their free software. Key features include:
- Sigma Optimization Pro: The free Sigma Optimization Pro software is simple to use, enabling you to update firmware as well as make focus adjustments on the latest Sigma A1 lenses. The software is compatible with both Mac and PC systems. Compatible lenses include:
- Sigma 50mm f/1.4 DG HSM A1
- Sigma 35mm f/1.4 DG HSM A1
- Sigma 30mm f/1.4 DC HSM A1
- Sigma 24mm f/1.4 DC HSM A1
- Sigma 20mm f/1.4 DC HSM A1
- Sigma 17-70mm f/2.8-4 DC Macro OS HSM A1
- Sigma 120-300mm f/2.8 DG OS HSM A1
- Sigma 18-35mm f/1.8 DC HSM A1
- Sigma 24-35mm f/2 DG HSM A1
- Sigma 50-100mm f/1.8 DC HSM A1
- Customized Calibration: With four adjustable categories to customize focus distance for prime lenses and sixteen for zoom lenses (4 distances x 4 focal lengths), the USB Dock allows precision calibration for the specific camera / lens setup. Additionally, when used with the Sigma 120-300mm f/2.8 DG OS HSM A1 for Canon, you can also customize three different AF speed modes, three Optical Stabilizer modes, and constrain focus distances within a specific range.
This item only calibrates the lenses listed above!