Canon R5 M2 Fast ISO Rolling Shadow Effect

[AllNatImages]

Dear All - Wondering if anyone else has come across this issue? NEW R5 M2 - In certain low light & fast ISO situations (with light coming from multiple sources/locations - chandelier, Christmas Tree lights, outdoor party lighting), a strange “rolling shadow” effect appears during STILL SHOOTING, not video.  For example - using the same ISO, shutter, and with the aperture at 2.8 aiming at the same subject - one shot looks fine and evenly lit, then the next shot has a massive shadow swath through the middle of the frame, then the next shot, the shadow is lower in the frame.  I just picked the body up from Canon servicing and they said there was nothing wrong with it but I have never seen anything like this in my 25 years of shooting with Canon cameras.  When I dropped it off at the servicing center, the representative did say he had heard of this issue and that maybe it is a strange combination of the type of artificial lighting and the shutter - but I have not had a true explanation or any suggestion of how to avoid this.  Pretty frustrated that Canon just returned the camera and told me it’s fine.  This is a real problem for anyone using this camera on professional jobs requiring low light shooting without a flash.  Has anyone out there hear of this?

Thank you very much!

[AllNatImages]

Waddizzle - thank you!  Looking in the menu, I see an option for “anti-flicker shoot” and for “HF anti-flicker shooting.” I am having the issue in photo mode, not video (that I have noticed anyway) and I am new to mirrorless, so this appears to be a quirk I am not used to.  The photo you posted of the tree looking partially lit is similar or the same as the issue I am having.  The Anti-flicker option gives a warning that the shutter release time lads longer. As far as you know, do these anti-flicker settings apply to photo mode or to video mode only? And of course, I’ll test these things on my own.  Thank you for the recommendations. 

[Waddizzle]

“ The photo you posted of the tree looking partially lit is similar or the same as the issue I am having.  The Anti-flicker option gives a warning that the shutter release time lads longer. As far as you know, do these anti-flicker settings apply to photo mode or to video mode only? “

YES.  Any menu options that you aee in any photo or video mode appy to that camera shooting mode.

The menu system in Canon bodies “adapts” itself to the shooting mode that you have selected on the top shooting mode dial.  Try switching the top dial to Green [A*] and half the menu system goes away. 

The menus will also adapt to whether you have selected photo or video mode. 

[AllNatImages]

Thank you very much for those tips and I will definitely try those settings.  I appreciate your feedback - far more helpful than the techs at Canon.  Thank you again.

[Waddizzle · Accepted solution]

“ Thank you very much for those tips and I will definitely try those settings.  I appreciate your feedback - far more helpful than the techs at Canon.  Thank you again. “

You are most welcome.

I think that the Canon repair center gave you good feedback.  Their job is to diagnose and repair gear.  They seem to avoid advising on setting up the camera.

Canon has a help center. It’s a separate group that directly interacts with users having setup of configuration questions.

[AllNatImages]

Good to know.  Thank you again!