Canon EOS-1ds Mark III, Sigma 24-70mm lens at 26mm, base exposure was 1.6s at f14, Singh-Ray LB Warming polarizer, 5 exposure bracket processed in Oloneo PhotoEngine and then converted to B+W in Nik Silver Efex Pro and then layered back with the PhotoEngine colour image. Click on the image for a larger view. Below is the base exposure to show the before.

©Darwin Wiggett - middle exposure of the series