Ugly zoomed picture 4K > 1080p

Bartyx

New Member
Hello guys.
I need some help, because I have no idea what is wrong in my setup.
I stream boardgames, so I have top down camera to my table. I use 1080p output to Youtube with 8000kbps and Apple hw encoder. The top view camera is Panasonic GH5ii set to 4k output connected via HDMI cable to Elgato Camlink 4k. When i set this input in OBS, it seems it is in 4K. Everything fine and the picture is sharp and good.

Problem is, when i zoom digitaly zoom to 2x. As I guess, the picture should be still 1080p because of half of 4K but when I zoom it, the picture is ugly, blurry and not very good.

What I am doing wrong? Or is there a way how to get zoomed picture from 4K source and keep the 1080p resolution?

Thank you.
 
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