Help Please: GH5, ATOMOS, MixPre HDMI Timecode and Control

I'm hoping that our community might be able to solve this together.

I've received the same question 4 times this week alone: How do I get timecode and Record Start/Stop controls to work with the GH5, ATOMOS (Ninja V, Sumo, Shogun, etc.), and the MixPre (3, 6, 10T) via HDMI?

I was NOT able to get all of them working by routing and HDMI cable from the GH5 to the Sumo, and from the Sumo to the MixPre. However, I confirmed with the same cables that it works when you use just the GH5 and MixPre or just the GH5 and ATOMOS recorder.

One hypothesis is that an HDMI splitter might solve the problem: Route an HDMI cable from the GH5 to an HDMI splitter, and from there, one of the splitter outputs to the ATOMOS and the other output to from the splitter to the MixPre.

Has anyone had success with this?

If this works, there's still the problem of how to power the HDMI splitter as most of them require power. But I believe there are some which are USB powered so that might work.

Thanks if anyone has information on whether the HDMI splitter approach or any other approach works. I'll create another video if we are able to find a solution.

I know that this is a bit of a Frankenstein type of rig. I don't usually shoot this way but I used to and many others still do for various reasons.


Copyright 2019 - Curtis Judd

Panasonic GH5S - 2 New Audio Features

The Panasonic GH5S has two new audio features which make this camera a little easier to work with from an audio standpoint: Timecode input and line level inputs. What does this mean? First, with timecode, you can simplify the process of syncing your video clips to audio clips recorded with a separate audio recorder. This means you can get higher quality audio and still sync quickly and effortlessly in post. Second, you could instead use your audio recorder or mixer to capture sound and then from your mixer, send the audio to the GH5S at line level which also results in higher quality audio but in this case you don’t have to sync in post - it is already baked in to the video clip!

Let’s have a look at how well each of these new features work.

Links to gear discussed and used to record this session:
Panasonic GH5S Camera

Panasonic XLR1 Microphone Adapter - so that you can use XLR based microphones with the GH5S

Sound Devices MixPre-10T Audio Recorder - we used the MixPre-10T as the mixer/preamp but all of the audio was recorded with the GH5S in this episode

Oktava mk-012 Microphone - great budget microphone for indoor dialogue recording

Panasonic 12-35mm f/2.8 OIS Lens - incredibly versatile lens that is on the GH5S most of the time

Lupo Superpanel LED Light Panel - Dual Color. Decided to try a harder light look just to see how it went. Not always my favorite look, but you never know unless you try!

Rosco 1/2 Soft Frost Diffusion gel - slightly diffuses the light, taped to the LED panel

Ambient Recording NanoLockit Timecode Generator with Wireless Sync

Ursa Mini Pro Cinema Camera - only for the shots of the GH5S, everything else shot with the GH5S

Sigma 24-70mm f/2.8 OS ART Lens

Copyright 2018 by Curtis Judd