The world’s oldest photographic competition, organised by The Royal Photographic Society (RPS), has put out a call for entries for 2012. The 155th International Print competition is open to all photographers and includes a special award for under 25 year olds. The contest’s sponsor, Allen & Overy, is awarding a £1000 prize for the best photograph on the theme of ‘Change’. The competition is open to entrants until 21 March 2012, and the awards will be presented to the winners on18 July. The entry fee is £15 for RPS members, £18 for non-members, and £10 for entrants under 25 years of age. To enter, visit the website below.