A few minutes after taking a photo of the silhouette I saw a fishing boat go towards where the light was shining on the lake, and decided that it could make a nice shot. Because of the strong reflection of the light on the water I pushed the exposure by one stop. Unfortunately I only had time for one shot, so I couldn't try bracketing the shot, and because of the fact that the camera was mounted on a tripod, I had to hurry. Canon EOS 500, and Sigma 70-200 f/2.8+1.4x teleconverter.