This was taken towards the end of the 1950s at the Photo Fair exhibition in London's Olympia. We were sitting at a coffee bar about 20 feet or so away from the stand of the Braun agents when I spotted this picture and borrowed Valerie's 1936 Kine Exakta with its f/2 Biotar lens. Film was FP3. I don't remember the stop and shutter speed but the lens would have been fairly wide open. This is cropped from about two thirds of the original negative.