I did some tests the other day.. I was hovering 275 feet away from the building with the brown roof and the Mavic2 Zoom was up at 318 feet . The first two still images were taken using the optical 24 and 48 mm. The last two images are screen grabs taken from a video.. One was at 24mm and the other used the amazing 96mm optical+digital zoom that's available when shooting at 1080/30.
The sky was heavy overcast.. The images are JPEG's straight out of the drone and unprocessed.