The view at FL380. We were westbound to San Diego from DC, and I had a window seat. We were at 38,000 ft. I was taking photos, in part so I could "justify" keeping the window shade open. At one point there was a contrail off in the distance, headed generally westbound too, but then the contrail got big, and I could see the aircraft was turning and descending. This was done with the 24-105, the only lens I had with me. I could have easily used a much longer focal length lens. This is really zoomed and cropped, and it was never that close, but it was really pleasantly exciting to see.
Nicely done. I often have problems with more zoom because the three panes in a commercial jet window tend to distort the image.