Lochan nan Cat West Perthshire, 26 August 2010 at 06:15 hours. I managed to make the walk-in from the A827 just in time for a brief sunrise at lochan nan cat. Nestling north-west from the huge bulk of Ben Lawers, I presumed it would be calm at this time of the morning but a fresh breeze was blowing off the hills. Use of my polarising filter and the early light meant an 8 second exposure that blurred the ripples, producing a similar effect to a calm surface. Camera details: EF17-40mm f/4L USM, 8.0 sec at f / 22.