Thank you so much for your excellent talk at the Richmond and Twickenham Photographic Society last night (May 21st). I absolutely love your work, especially the sea water pools. I also use a Canon 5D Mk3 and am ashamed about my lack of knowledge on multiple exposures - I am checking out the 'YouTube' videos now! You did especially well with the lido in Penzance in the winter. I have often tried to get shots there but to no avail - my Mum lives in Penzance and often swam in the lido there until it was decimated by last years storms.