topic EOS R5 Mark II sync speed confusion in EOS DSLR & Mirrorless Cameras

EOS R5 Mark II sync speed confusion

Bazsl — Tue, 27 Aug 2024 11:58:32 GMT

The R5 Mark II user guide shows the following conflicting information for full frame sync speed.

Does anyone know which row (page) is correct? FWIW, I use a non-Canon (Godox) speedlight. Thanks.

Sorry for the duplicate post but my table was trashed when I clicked on Post the first time.

Re: R5 mark II sync speed confusion

p4pictures — Fri, 23 Aug 2024 22:31:53 GMT

Yes there are different sync speeds depending on the use of other features.

The fractional parts of the shutter speed relate to the use of high frequency anti flicker shooting with flash.

The sync speeds for most cases are:-

Mechanical - 1/200
Electronic 1st curtain - 1/250
Electronic - 1/180

When using certain Canon Speedlites listed in the manual and the sync speed priority function is used

Electronic 1st curtain - 1/320 or 1/400 in 1.6x crop mode
Electronic - 1/200 or 1/320 in 1.6x crop mode

In the case of the crop modes the shutter has to cover less distance so the speed can be faster.

In my view there are some inconsistencies in the manual as page 192 and page 204 contradict as does page 1215.

Re: R5 mark II sync speed confusion

Bazsl — Sun, 25 Aug 2024 21:50:06 GMT

Thanks for the clarification, Brian. The part about high frequency anti-flicker was not clear to me at all.

Re: R5 mark II sync speed confusion

zonomo1 — Mon, 26 Aug 2024 17:08:00 GMT

My Sync Speed Priority is grayed out, Any idea why?

Re: R5 mark II sync speed confusion

p4pictures — Tue, 27 Aug 2024 07:47:59 GMT

Sync speed priority works with specific Canon Speedlites.

Check the note on this page in the HTML manual

https://cam.start.canon/en/C017/manual/html/UG-03_Shooting-1_0100.html

Note the points about shutter mode cannot be mechanical, and that only the following Speedlites being compatible
Speedlite 430EX III / 470EX-AI / 600 EX II-RT / EL-100 / EL-1 / EL-5 / EL-10
Macro Ring Lite MR14-EX II / Macro Twin Lite MT-26EX-RT

Re: R5 mark II sync speed confusion

Photo_MKE — Wed, 04 Sep 2024 23:28:39 GMT

Hello,

I cannot get my R5 into HSS with a Westcott FJ-X3m trigger. I can get it to fire my Westcott FJ200 up to 1/200th but not beyond. Flash Function Settings are grayed out in the menu. Any suggestions?

thanks,

Patrick

Re: R5 mark II sync speed confusion

jaredp — Sat, 07 Sep 2024 03:32:52 GMT

I am experiencing the same. Updated the FJ-X3m firmware to the latest 1.3.5 and no change. It's set at TTL and First curtain. I cannot get menu to allow me to change the settings at all.

The flash works fine, fires, etc. But none of the Flash function settings work.

Re: R5 mark II sync speed confusion

p4pictures — Sat, 07 Sep 2024 09:17:04 GMT

Since the flash settings menu and high speed sync works with Canon Speedlites, then this issue is down to the Westcott triggers not being full compatible with the camera. Only solution will be for Westcott to update their trigger to support the camera.

Re: R5 mark II sync speed confusion

willwenzel — Tue, 18 Mar 2025 13:30:43 GMT

Hi Mike, I'm sure you figured this out, but for anyone else looking for the same question, start here. Press and hold the SYNC|Menu button to get into the settings menu. Check 2 things here: that the camera is set to Canon, obviously, and then that X=Sync is set to off. next, setting the sync mode. While there are options to do this on your transmitter, Canon cameras often over-ride the settings of transmitters, so HSS must be selected from the R5 menu. Press the menu button, and then navigate to external speedlite settings, and ensure that you choose a slow speed setting of 1/200th - 30 or 1/200th - 60. The mysterious 1/200th setting, which makes logical sense, locks the camera at 1/200 in all situations.