HDMI color issues when Lumix G7 is in 4K?

Danielvr wrote:

..I think it may help others to know if regular 4K recordings (to memory card) look good, and what streamed HDMI output looks like on another device such as a TV set.

Thanks for the response Daniel! As mentioned in the main post, the regular 4K recordings look good (camera and memory card). I haven't been able to test it on a TV unfortunately, since I don't currently own one.

JakeJY wrote:

xandreax wrote:

Danielvr wrote:

..I think it may help others to know if regular 4K recordings (to memory card) look good, and what streamed HDMI output looks like on another device such as a TV set.

Thanks for the response Daniel! As mentioned in the main post, the regular 4K recordings look good (camera and memory card). I haven't been able to test it on a TV unfortunately, since I don't currently own one.

What are you using to input into your computer? Does your capture card say explicitly that it supports 4K (and what frame rates and subsampling, I believe G7 outputs 8-bit 4:2:2 over HDMI, although it only records 8-bit 4:2:0). Also check your microhdmi adapter and cable, 4K HDMI can be very fiddly (I tried on my GX85 on my TV and connection can drop easily on a loose connection). You need at minimum something compatible with "High Speed HDMI".

As others mentioned, the easier test would be to try on a 4K TV or monitor just to make sure it's not your capture card or OBS set up.

I would also check if you have any settings set for whichever mode you switch into for the 4K (like Cinelike-D for example).

Hi Jake, thank you for this. The capture card I have is UNISHEEN USB 3.1 Game Capture HDMI Video Adapter Card, the most affordable one I could find. It supports 4K, but no it doesn't clarify the HDMI Input Format detailing the colorspace.

My HDMI cable is indeed High Speed (both of the ones I tried, and they are brand new). I also just checked all the different modes (Cinelike, Natural, etc) and it has the same weird color scheme in all of them, just with diff styles/contrasts of course. Since I dont have the access to a TV for now, I guess the only thing I can narrow it down to is the capture card or my OBS settings. Something tells me it might be the capture card.

Danielvr wrote:

The capture card I have is UNISHEEN USB 3.1 Game Capture HDMI Video Adapter Card,

Did you see the user reviews? Some people report the same problem that you raised here:

https://www.amazon.com/gp/customer-reviews/R38QT52CU4Z8B4/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B07Y7BFXVM

Oh wow thank you! I didn't. I originally bought it awhile ago for my GH2 (before I bought the G7) which doesn't go up to 4K. I figured it would work seamlessly when I switched to the G7.

Returning it and purchased the Magwell USB Capture HDMI Plus. The overview seems to be spot on. Fingers crossed, thanks again!