We took our 17 year-old son to Washington DC this week. On Thursday, we took the Metrorail subway to the National Zoo. (A first time experience for my son and I--they don't have that sort of thing around here). This escalator was very long (high?)--my husband held on to me from behind while I took my hands off the rail to take the picture. Sorry I can't give all that helpful camera information--I just have a point and shoot Canon Powershot A560. I do think I used the "Night Snapshot" setting since the light was so dim.
I just discovered that Picasa tells me all that camera info that people with real cameras are posting--so here goes: Focal length: 5.8 mm; f/2.6; 35mm equivalent--37mm; ISO 250.