topic Re: EOS C500 Mark II- inconsistencies with SDI Out terminals in Professional Video

EOS C500 Mark II- inconsistencies with SDI Out terminals

bbellotte — Fri, 20 Dec 2024 00:30:28 GMT

Hey all -

Looking for any suggestions, I'm using a c500mkii with the Mon and SDI Out terminals (one on body monitor, 1 teradek sending signal to video village). I'm using a Shogun Inferno from the SDI Out (for a ProRes backup record) and the monitor out sends the video village signal. Recently, I've had inconsistencies with the SDI output and now it's stopped working altogether. I've tried to down-res the video to SDI Out (2K/1080, and 1080), but nothing. I can get monitor signal out to other devices no problem and the Shogun can receive the monitor out signal. I've tried a down converted signal (1080) to a SmallHD Cine7, but can't seem to get any SDI signal to that monitor regardless so that's probably a separate issue.

I've updated the firmware (1.1.3.1) and no change. We used the C300 mkii before this and only had an issue until forcing an HD signal instead of UHD. We had a shoot with these cameras a couple weeks ago with this same setup and was able to get and record UHD to the shogun. Just wondering if anyone has any insight or experience with this?

We generally shoot UHD (3840x2160), 23.98p, XF-AVC format.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

ECS — Wed, 29 Jan 2025 21:19:56 GMT

Hi there!

We're having a similar issue. Are there any techs that can provide some insight to this issue?

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

DerekEllis — Fri, 28 Mar 2025 00:51:40 GMT

Hello,

Im having the same issue. However, my issue is with the c300mkiii. I typically run use monitor out send signal to an onboard smallhd monitor. Then use SDI out to send signal to my teradek. Two weeks ago the issue arose where i could no longer get a signal out from the SDI port. The monitor out port feeds signal to any device i try (i.e. teradek, onboard smallhd, 17” smallhd monitor). Ive tried changing up the settings for I/O but with no luck. Wondering if anyone has had luck trouble shooting? Or if you had to send in to canon for repair?

Thank you

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

ECS — Fri, 28 Mar 2025 23:49:52 GMT

We ended up sending the camera in for service. They replaced the I/O board. It was stupidly expensive. Around $1900. But it works now.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

mcbarny — Wed, 09 Apr 2025 22:05:47 GMT

I had an issue with my 3G monitor port in my C300III back in 2021. The camera wasn't half a year old and Canon repaired it on warranty.
This article might be helpful for understanding the issue and the ever-present danger of using SDI:
https://www.newsshooter.com/2020/02/15/preventing-damage-to-sdi-outputs/

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

DerekEllis — Wed, 09 Apr 2025 22:25:55 GMT

Thanks for the reply and the link. I took it to Canon and it was diagnosed as a bad SDI port, which they replaced. Thankful it wasn’t the I/O board.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

mcbarny — Wed, 09 Apr 2025 22:42:05 GMT

I'm glad it also went out well for you. I can't really tell what has been repaired in my case as they didn't let me know.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

RodrigoLizana — Thu, 05 Feb 2026 02:21:17 GMT

Hello everyone. I'm having the same issue. No signal out of the SDI port. Mon out works fine and I can loop from the onboard monitor into the Teradek but it´s not supposed to be like that on a new camera. Is there something I'm missing ? Should I lower the resolution of the SDI port to 1080 ? Is that possible and something I can do on the menu or most probably another repair on a six month old camera ?

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

DerekEllis — Thu, 05 Feb 2026 03:04:45 GMT

I had both my Monitor port and SDI port go out but at different times. If you live in Southern California, I recommend you take it to the factory repair shop in Costa Mesa, CA. The first time I took it in when my SDI port failed, it was a $300 repair of the port itself. The second time my monitor out port failed. That ended up being the I/O board, which is a more expensive repair. Since id taken it in six months earlier they repaired it complimentary. So they're good folks over there and take care of their customers.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

shadowsports — Thu, 05 Feb 2026 03:21:47 GMT

@DerekEllis,

Kind of you to share this feedback.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

mcbarny — Thu, 05 Feb 2026 14:02:22 GMT

You can start by trying to change the resolution on the SDI port to 2K/1080. You may also want to try the settings below that. Some external devices do not accept a 12G-SDI signal, and reducing the resolution converts the 12G signal to a 3G-SDI signal.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

mcbarny — Thu, 05 Feb 2026 14:03:30 GMT

The settings can be found at the back in the Setup tab.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

bbellotte — Thu, 05 Feb 2026 17:22:14 GMT

Hello all -
An update: We did have one camera with a burned out SDI port, that was sent to Canon and replaced. I believe plugging in the SDI cable to the monitor and camera before powering on the monitor caused the power to burn out the port. [Someone posted a link to an article about this, very helpful] Luckily we work very close to the Canon offices in Burbank and they were able to send someone out in-person to take a look at our setups.

The SmallHD monitors only do UHD through HDMI, so changing the SDI Out from UHD to HD (along with a cable swap) has fixed the issues on the other cameras.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

bbellotte — Thu, 05 Feb 2026 18:00:18 GMT

Hey absolutely, it's in the 1 Select MENU > [System Setup] > [SDI OUT Output (Max Res.)] > Desired option.
It's the second-to-last tab of the menu (wrench icon), page 2, 4th item down. Hopefully this helps your situation!

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

RodrigoLizana — Thu, 05 Feb 2026 19:06:57 GMT

Found the solution. Page 156 of the manual, Using the SDI OUT terminal.

Select Menu > System Set up > [SDI OUT Output (Max Res.)] > Desired option.
Also needed to change P to psf (strangely didn't do this for the mon out and it worked).

Happy to avoid service !

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

mcbarny — Thu, 05 Feb 2026 20:48:01 GMT

That's more or less what bbellotte and I advised you to do. I wonder why you bother asking the community when you end up looking it up yourself?
Anyway, it's good that you found the solution.

Re: EOS C500 Mark II- inconsistencies with SDI Out terminals

RodrigoLizana — Thu, 05 Feb 2026 21:05:33 GMT

Hi Mcbarny, yes I did look for myself first and not sure why I missed the answer in the manual at that time. I always try to look for myself and then ask, this time I missed the answer. I posted my findings before your and bbellotte´s suggestion . If you look all three were posted the same day. Maybe I rushed into sharing my good luck out happiness ! Anyways, thanks again for the help. It is much appreciated.