My regular computer is currently packed up and on its way to the States, along with my NR software and almost everything else, and I'm having a hard time judging how this really looks on this uncalibrated and unfamiliar Powerbook!
Anyway, I have no way to set up any white shots, so I spent the day today in Istanbul looking for white things (not many there, I found, LOL). But I did run into this door on an old Ottoman building near the Hippodrome. For a fuller view of the door, see http://www.pbase.com/image/62828074 and more of the building at http://www.pbase.com/helenpb/image/62828120