Zooming in to what?

Are you talking about the iD editor, in which case you would see something like this if there was the edge of a park, or an other are of vegetation mapped in that area, as the editor needs to show both the map and the aerial imagery you are trying to use as a source. iD also reduces the intensity of the background image, so that it is easier to see the map, but that is configurable on its layers menu (three stacked squares, near the centre right of the window). You can also turn off the map entirely, using the next menu down, but that defeats the purpose of the editor and may conflict with the licensing of some of the imagery.

Or, are you referring to something related to Garmin maps, in which case there is a specific forum on this board that relates to the use of OSM on Garmin.

OSM itself only serves aerial imagery as an aid to mapping, not as an end user resource.