>>3903892>Why can’t modern cameras compete with the iPhone for natural dynamic range? The iPhone did a better job highlighting the subject and the backgroundThey can.
The thing you're missing is that the iPhone is capturing in HDR mode--I.e., it's got pretty piss-poor dynamic range, but it makes up for it by taking multiple pictures with different exposures and combining them.
Your 6D can do it too. Here's how to turn it on:
https://support.usa.canon.com/kb/index?page=content&id=ART136173That being said, the processor in your iPhone is a lot more powerful than the one in a 6D, so the iPhone probably does a better job of combining the HDR shots than your camera can, although you can just bracket the photos and combine them in Lightroom or whatever and it should work.