Thank you Christoph! Tis picture is only from one single shot. The aperture is f/9, it is not so hard for an ultrawide angle (Tamron SP 10-24 mm @ 12 mm) to capture the fore- and background sharp. Have a look at the metering scale of a ultrawide angle and you will understand. Th plants in the foreground are protected by the stones, this is the reason why they didn't move. ;)