It was shot with a Canon 5D Mark II + battery grip [1], Canon 16-35mm f/2.8 L II lens [2], a TC-80N3 shutter release timer [3], on a Slik travel tripod [4].
As for how it was shot: “I shoot these on Av (Aperture Priority) with an ISO ranging from 200 during the day to 6400 at night. That way the 5d2 will automatically go up to 30 seconds at night to as quick as 1/8000th when dawn comes. [On timing:] 2 seconds during the day, and up to 30 second exposures and intervals at night. [On battery life:] I have the grip with two batteries and I disable photo review so the LCD screen never lights up. That way I can shoot about 3k - 4k photos off two batteries fully charged.”
As for how it was shot: “I shoot these on Av (Aperture Priority) with an ISO ranging from 200 during the day to 6400 at night. That way the 5d2 will automatically go up to 30 seconds at night to as quick as 1/8000th when dawn comes. [On timing:] 2 seconds during the day, and up to 30 second exposures and intervals at night. [On battery life:] I have the grip with two batteries and I disable photo review so the LCD screen never lights up. That way I can shoot about 3k - 4k photos off two batteries fully charged.”
[1] http://www.bhphotovideo.com/c/product/590457-REG/Canon_3353B...
[2] http://www.kenrockwell.com/canon/lenses/16-35mm-ii.htm
[3] http://shop.usa.canon.com/webapp/wcs/stores/servlet/product_...
[4] http://www.adorama.com/alc/0011522/news/Compact-Travel-Tripo...