The green isn't for that ND. This the other ND — the one that beats the Indiana ND in hockey every year. Pretty happy with this snap from the first day of the Tillman Crane Structures Workshop.
Five shot bracket, over 5 stops, windows would have been blown out otherwise. Sandwiched with Phototmatix Fusion. 5D MkIII @ ISO 200, f/11.0, bracketed around 4/10, 24mm TS-E. Focus assist via SmallHD DP-4.