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3. Click on [OK] to go back to Customization Mode Setting C1 (or C2).
4. Click the [Rewriting] button and the dialog box for confirmation will appear.
5. Carefully read the content in the dialog box, and click [Agree] to process the customization, or click [Return]
to not process the customization.
6. Once the rewriting finishes, the dialog box for confirmation appears. Then, click [Close] and remove the
lens.
It is possible to return to the default setting (the range of the AF drive is set to the full range) by clicking on
the [Reset] button.
CAUTION !!
The setting of SIGMA Optimization Pro is prioritized and the focus limiter switch which is incorporated in the
lens is disabled when the Customization mode is effective.
Do not remove the lens or press the detachment button while updating firmware.
Do not turn off the computer while updating firmware.
Do not customize or change the current setting of the lens while updating firmware.
In case updating firmware finishes unsuccessfully, a message [Rewriting the setting of the lens is
incomplete.] appears in the dialog box. Follow the instructions [RESET ALL CUSTOMIZATION] and proceed
resetting the customization.