• The firmware will optimize the operation of Mode2 in Optical Stabilizer when used in combination with the SIGMA Mount Converter MC-21 SA-L.
How to update Connect the lens to a computer via the SIGMA USB Dock UD-01 (sold separately), then open SIGMA Optimization Pro*. If the lens firmware isn’t the latest version, the following message will appear: ‘The latest lens firmware is available’. Click ‘Yes’ to update.
*Before updating lens firmware using the SIGMA USB DOCK UD-01, please ensure you update SIGMA Optimization Pro to the latest version.
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