The game engine is so beautiful, I don't feel the need to use photo mode. I also like including HUD elements and sometimes the steam overlay to drive home the impression of what this game looks like in action.
This is almost maxed out. I turned down some of the settings that affect performance, but don't affect image quality much. But I'll be damned if I don't crank RT to the max.
There's a blooming effect present that doesn't appear in-game. It might be because HDR is enabled?
EDIT: The pics are definitely not in 4K on my end. If it's the same for everyone else, I'd like to know how to fix it.