Earth Hour 2012 Chicago Edition (Seth Oliver Photographic Art) Tags: nightphotography chicago buildings reflections iso200 illinois nikon midwest skyscrapers cities cityscapes lakemichigan nightshots southloop pinoy nightscapes urbanscapes secondcity windycity longexposures chicagoist d90 nightexposures wetreflections cityofbigshoulders 20secondsexposure manualmodeexposure setholiver1 aperturef220 circularpolarizers tripodmountedshot 1024mmtamronuwalens timedelaytriggeredshot earthhour2012 chicagoskylineduringearthhour2012 soocexceptforcropto16x9format