URSA Broadcast Camera - Color Changes Sporadically

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martycg15

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URSA Broadcast Camera - Color Changes Sporadically

PostTue Jul 20, 2021 2:40 am

Hello

Hoping someone is able to help with this problem we've been having.

We have 4 URSA broadcast cameras, the ATEM 4K switcher and the Color Control Panel. I started noticing this problem once we hooked up the Color Control Panel, but even after we've disconnected it, it still happens. We do have the ATEM software on a laptop controlling the colors now though. We use the fiber outs to the fiber converters.

I've only ever made note of it happening on one camera, so I'm not sure it if it's happening on more than one camera yet. We have a 90min record and it only happens once or twice in that time each week.

The problem is that all of a sudden the color of the camera tints blue for about 30s and then switches back to normal.

Any ideas?
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Xtreemtec

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 22, 2021 9:18 am

Errors in the return video can cause this. If a bit tumbles over in the return data that is for color correction it might turn out a slightly different value, changing the camera..

The 30 seconds is normal as ALL settings to ALL cameras are updates every 30 seconds or so as a block update.

And all changed settings will happen in between.

But that is why your camera will jump in to settings after you turn it on. As it receives a full settings update twice a minute..
Daniel Wittenaar .:: Xtreemtec Media Productions ::. -= www.xtreemtec.nl =-
4K OBV Trailer, ATEM TVS HD, 4M/E Broadcast Studio 4K, Constelation 8K, Hyperdeck Studio 12G, Ursa Broadcast 4K, 4K fiber converters with Sony Control
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martycg15

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 22, 2021 2:37 pm

Thanks, is there a fix for it? Is there a reason it would always be on one camera, is there something in the chain of equipment that we should look at?
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Xtreemtec

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 22, 2021 5:28 pm

As said. It happens if your return feed to the camera is not 100% fine.. If there are CRC errors it will happen..

The fact you say you use fibers between the camera and atem.. What fiber solution? The BMD Studio fiber solution or something else?

The BMD fiber solution sometimes suffers from the short BNC cables going bad.. Replacing them often solves the problem..

Also dirty fibers might be the issue that its close to loosing the signal.. Can sometimes lead to a half or corrupted frame leading to this error. ;)
Daniel Wittenaar .:: Xtreemtec Media Productions ::. -= www.xtreemtec.nl =-
4K OBV Trailer, ATEM TVS HD, 4M/E Broadcast Studio 4K, Constelation 8K, Hyperdeck Studio 12G, Ursa Broadcast 4K, 4K fiber converters with Sony Control
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martycg15

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 22, 2021 7:50 pm

Thanks again for your help.

We're using the BMD Fiber Converters... Camera to Studio.

We'll check the BNC cables first, thanks!
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martycg15

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 21, 2022 3:39 am

Has anyone encountered this issue, we're still struggling with it. The cabling is all new.
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Xtreemtec

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Re: URSA Broadcast Camera - Color Changes Sporadically

PostThu Jul 21, 2022 12:02 pm

I know it aint ideal situation.. But hook that camera up with 2 sdi cables of 3 meters or so and let it run a session of hours.. See if you still see the problem..

Eliminating all hardware in between your atem and camera. ;)
Daniel Wittenaar .:: Xtreemtec Media Productions ::. -= www.xtreemtec.nl =-
4K OBV Trailer, ATEM TVS HD, 4M/E Broadcast Studio 4K, Constelation 8K, Hyperdeck Studio 12G, Ursa Broadcast 4K, 4K fiber converters with Sony Control

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