Premium DigitalGlobe imagery
With Premium DigitalGlobe imagery at 100m you can see buildings and it is not comfortable to edit them at this zoom level being too small but the height when you zoom out 50m the buildings disappear. As I use JOSM frequently, I tried ID editor and it’s the same thing. That’s weird. photo 1 zoom at 100 m photo 2 zoom at 50 m