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. My apologies for the question, I know it's an old camera.
Is this the mark 1 or mark 2 C100?
If a mark 1 and it doesn't have the DAF upgrade, then it wont have autofocus.
Awesome, thank you!
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.