Location : The Crown Mines at Botallack in west Cornwall. The village is in a former tin mining area situated between the town of St Just in Penwith and the village of Pendeen. There are two engine houses there and the mine extends for about 400 meters out under the Atlantic Ocean; the deepest shaft is about 500m below sea level.

This image was captured shortly before sunset using a tripod-mounted Canon 5DmkIII camera and a Canon EF 24-105mm f/4 L lens. I used Live View focusing at 10x to focus on the rocks just below. The camera was set to manual exposure mode, f/22, ISO 100 and daylight white balance. I fitted the 10 stop neutral density filter to increase the exposure to 181 seconds! The RAW processing and the final adjustments were all done in Photoshop CS/6.

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