...is when the sun kisses the horizon and, on a clear day, the sky turns into a shock of deep, infinite blue. You might even see a few stars, but you'll see the lights of the city stand out before then. Shapes are still easy to make out, giving photographs made at that time form to complement the outstanding contrast of artificial light vs. natural light. That's when you'll find me, standing next to my tripod-mounted Nikon, waiting for just the right moment. In these Southern climes, I usually only have about 10-15 minutes before things get too "deep" to render shapes, and the contrast gets too high for digital or even film cameras. The "decisive moment" arrives, as Cartier-Bresson would say, when you shoot for that once-in-a-lifetime moment.