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Sigma has released new firmware for the following flash, mount converter and lenses.</p>
<p><strong>Sigma flash and mount converter with the following firmware updates:</strong></p>
<p><strong>ELECTRONIC FLASH EF-630</strong></p>
<ul>
<li>It has corrected the phenomenon where it occasionally stops communicating after recovering from Auto Power Off.</li>
</ul>
<p><strong>MOUNT CONVERTER MC-11</strong></p>
<ul>
<li>It has become compatible with the SIGMA 70mm F2.8 DG MACRO</li>
<li>It has become compatible with the SIGMA 105mm F1.4 DG HSM</li>
</ul>
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<p><strong>Sigma lenses with the following firmware update:</strong></p>
<ul>
<li>It has corrected the phenomenon that the continuous shooting speed of some SIGMA interchangeable lenses with firmware Ver.2.00 decreases in certain combinations with some cameras.</li>
</ul>
<p><strong>Sigma 18-35mm F1.8 DC HSM A013</strong></p>
<ul>
<li>Now Compatible with Sigma Mount Converter MC-11.</li>
</ul>
<p><strong>Sigma 24-70mm F2.8 DG OS HSM A017</strong></p>
<ul>
<li>It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).</li>
</ul>
<p><strong>Sigma 35mm F1.4 DG HSM A012</strong></p>
<ul>
<li>Now Compatible with Sigma Mount Converter MC-11.</li>
</ul>
<p><strong>Sigma 50mm F1.4 DG HSM A014</strong></p>
<ul>
<li>Now Compatible with Sigma Mount Converter MC-11.</li>
</ul>
<p><strong>Sigma 85mm F1.4 DG HSM A016</strong></p>
<ul>
<li>It has corrected the phenomenon that the continuous shooting speed of some SIGMA interchangeable lenses with firmware Ver.2.00 decreases in certain combinations with some cameras.</li>
</ul>
<p><strong>Sigma 135mm F1.8 DG HSM A017</strong></p>
<ul>
<li>It has corrected the phenomenon that the continuous shooting speed of some SIGMA interchangeable lenses with firmware Ver.2.00 decreases in certain combinations with some cameras.</li>
</ul>
<p><strong>Sigma 100-400mm F5-6.3 DG OS HSM C017</strong></p>
<ul>
<li>It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).</li>
</ul>
<p><strong><a href="https://www.sigma-global.com/en/download/lenses/firmware/">Visit Sigma to to learn more about the new firmware versions for the above lenses</a></strong>.</p>
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