Reichu: From EVA-01's point of view, she shouldn't be able to see much aside from asphalt… so how is Shinji able to see Sachiel so clearly here? The answer, if evidence we'll see in future episodes is any indication, is that the visuals projected onto the cockpit's interior screens come from cameras in the Eva's helmet and not the Eva's actual eye(s). I suppose that would mean that the information from the Eva's visual cortex is somehow "blocked" and the pilot is allowed to see "normally", i.e., perceive vis exterior environment via the viewscreens, as opposed to having it go directly to their brains (in the way that, say, the Eva's tactile senses obviously do).
Considering the limited nature of the Evas' own visual range (due to their helmets, eye "goggles", etc.) and the benefits of mechanical optics (zooming, etc.), this system seems practical enough — in theory. However, as will be increasingly clear as we go along, it seems to create more technical issues and discrepancies than it's worth!