topic Re: RF 24-105 f2.8 with R5 II in EOS DSLR & Mirrorless Cameras

EOS R5 Mark II won't change aperture on RF 24-105 f2.8

reginaldwalton — Tue, 03 Sep 2024 13:22:04 GMT

Hello, I have the Canon R5 II, along with the RF 24-105 2.8 and for some reason, I am not able to adjust the aperture in either manual or Aperture Priority mode from the camera. I can change the aperture via the dial on the lens, but not from the camera itself. I don't have any seetings for the control ring or the buttons on the lens (I actually have them off). This only happens with the 24-104 2.8 lens and not any of my other Canon lenses.

Any idea why I can't change the aperture via the camera when this lens is attached? I didn't have this issue with my R5.

Re: RF 24-105 f2.8 with R5 II

deebatman316 — Sun, 01 Sep 2024 14:14:38 GMT

Make sure aperture ring is set to A on the lens. The aperture ring overrides the setting on the camera.

Re: RF 24-105 f2.8 with R5 II

reginaldwalton — Sun, 01 Sep 2024 15:39:43 GMT

Ahh!I didn't realize I had changed that and that was the issue. Thank you very much!!

Re: RF 24-105 f2.8 with R5 II

Surenz — Sun, 15 Sep 2024 07:47:36 GMT

I am experiencing the same problem. How do I set the aperture ring to "A"? I noticed there's an "A" on the lens ring, but I can't find any button to set it. Is there a video or PDF available? It would be great if you could provide some instructions to fix this aperture issue with the R5 Mark II when using the RF 24-105mm f/2.8 lens.

Thank you

Re: RF 24-105 f2.8 with R5 II

reginaldwalton — Sun, 15 Sep 2024 08:43:33 GMT

There is a little lever labeled Iris. Select that and move the Aperture ring to the A position.