Canon R5 + Canon adapter + Sigma EX 105mm 1:2.8 macro

Started 2 months ago | Discussions thread
OP Photooo New Member • Posts: 13
Re: Canon R5 + Canon adapter + Sigma EX 105mm 1:2.8 macro

Mine is just "EX", no "DG" or HSM, it's pretty old. I just tried and it seems the autofocus doesn't work (makes really strange sound and doesn't focus at all, like continuous working of the motor inside). While in manual focus it is OK, and the aperture is working.
But I was curious if there is any way trough settings in the camera to resolve this autofocus problem, or is it incompatibility (I've the lens since 2000, so they are pretty outdated)

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