Using a longer lens on a sunrise can result in a totally different look. These low clouds in the distant horizon muffled the sun a bit as it was rising. I had already taken many pictures with a wider angle lens and decided I wanted to get one of the boats silhouetted against this nuclear sky. This was taken with a 70-200 at 200. There a lot more going on in the sky at the time but behind the boat was the strange glow from the low clouds.