The first step was setting up my camera on a tripod and working out depth of field/focus and exposure settings. I recently bought an intervalometer which hooks up to the camera and allows me to do neat things with sequential exposures. Basically, I had the camera set up with a good exposure and depth of field and told it to take one picture every five seconds until stopped. I moved around the frame for the various captures and pieced them together afterwards in Photoshop. I also took a darker frame which was blended in where the lamp in the background is (and the bright highlight on the railing in the foreground) to give it some more detail. Once they were all in place, I did my usual adjustments for contrast, colour, and sharpening. All told, there are nine images blended to create the final product.