https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387751#M2380 <P>I have tried two EF Sigma lenses, the 18-300 and the 18-35 on my C100 and both show a greyed out AF Mode in the menu settings.&nbsp; My apologies for the question, I know it's an old camera.</P> Tue, 27 Sep 2022 15:24:39 GMT ahv_2022 2022-09-27T15:24:39Z https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387751#M2380 <P>I have tried two EF Sigma lenses, the 18-300 and the 18-35 on my C100 and both show a greyed out AF Mode in the menu settings.&nbsp; My apologies for the question, I know it's an old camera.</P> Tue, 27 Sep 2022 15:24:39 GMT https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387751#M2380 ahv_2022 2022-09-27T15:24:39Z https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387796#M2381 <P>Is this the mark 1 or mark 2 C100?</P><P>If a mark 1 and it doesn't have the DAF upgrade, then it wont have autofocus.</P><P>&nbsp;</P> Tue, 27 Sep 2022 19:48:22 GMT https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387796#M2381 IamintheUK 2022-09-27T19:48:22Z https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387804#M2382 <P>Awesome, thank you!</P> Tue, 27 Sep 2022 20:04:29 GMT https://community.usa.canon.com/t5/Professional-Video/Why-is-the-AF-mode-greyed-out-when-using-EF-Sigma-lenses-on-my/m-p/387804#M2382 ahv_2022 2022-09-27T20:04:29Z