topic Canon R5C AF Tracking Issue in High-Speed Photo Mode in Professional Video

Canon R5C AF Tracking Issue in High-Speed Photo Mode

Finch — Wed, 13 Dec 2023 12:10:37 GMT

Hello everyone,

I hope this message finds you well. I'm reaching out to share a concern I've been experiencing with my Canon R5C, specifically related to autofocus tracking in high-speed photo mode.

When shooting in H+ speed mode with AFC enabled, my Canon R5C often loses focus, and the focus point tends to be front-focused, especially when using RF 15-35mm, 24-70mm, and 70-200mm (f2.8) lenses. Even in static scenes that don't require quick adjustments, the camera consistently struggles and results in front focus after a few shots.

Camera: Canon R5C
Mode: Photo
Autofocus Mode: AFC (Continuous)
Drive Mode: High-Speed (H+)
Lens: RF 15-35mm, 24-70mm, 70-200mm (f2.8)

Steps to Reproduce: Simply activate H+ drive mode with AFC to observe the autofocus tracking issues.

Has anyone else experienced a similar problem with the Canon R5C in high-speed photo mode? If so, have you found any solutions or workarounds?
I appreciate any insights or suggestions you may have regarding this issue. It's becoming quite frustrating, and I'm eager to find a resolution.
Thank you for your time and assistance!
Jacob Finch

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

Finch — Wed, 13 Dec 2023 12:15:45 GMT

R5C + RF 50 1.2 and second photo in this mode also suffering on lack of autofocus.

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

Finch — Wed, 13 Dec 2023 12:18:29 GMT

R5C + RF 24-70

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

Finch — Wed, 13 Dec 2023 12:22:36 GMT

R5C + RF 70-200

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

shadowsports — Wed, 13 Dec 2023 15:55:49 GMT

I won't have availability to test until Saturday. I have three of the four lenses that you are using. Not all lenses are capable of H+ but I believe the four you have would be. What firmware are you running? Have you installed 1.0.6.1 yet?

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

shadowsports — Wed, 13 Dec 2023 16:03:27 GMT

Would still like to know what firmware you are running, since fairly dramatic AF changes were introduced with 1.0.4.1 and >.

What AF Operation are you using?

What AF Method is set?

This info will be helpful to reproduce your shooting settings.

I would also suggest using DPP to review what the camera is using for focus point(s) at the time of exposure.

Re: Canon R5C AF Tracking Issue in High-Speed Photo Mode

Finch — Wed, 13 Dec 2023 15:46:17 GMT

My r5c has 1.0.5.1 current firmware.