Shot from the port side of "Adonia" passing through the Straights of Gibralter en route for Lisbon, in windy conditions (Force 6). Situated somewhere between Ceuta and Tangiers.
The smudge on the skyline is smoke and not something nasty on my sensor.
I kept the shutter speed as high as possible because of the conditions. The cmera was sat on top on a monopod braced against the ships rail. It was the best chance of getting pin sharp results.