To get this shot, I had the 580EX flash softboxed to camera left, almost directly shooting perpendicular to the camera's view. I had the camera with the 70-200mm all the way out at 200mm; set at 1/80s @ f/14 and at iso 200. I also set a black foam stock as a flag behind the flower to help black it out in Photoshop and a silver reflectant fabric under the flower to help a little with the fill. For the flower I used a wire coat hanger to "pose" the flower up into position. Below is the shot set-up diagram.
