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

Started 2 months ago | Discussions thread
Stuart Carlton Regular Member • Posts: 152
Re: Canon R5 + Canon adapter + Sigma EX 105mm 1:2.8 macro

Photooo wrote:

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in the camera to resolve this autofocus problem, or is it incompatibility (I've the lens since 2000, so they are pretty outdated)

I am no expert on this but, there is a longish list of lenses compatible with the R5. I suspect (although I haven’t checked) your lens is not compatible. As far as I am aware there is no workaround in the camera.

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