If to date your night-time photography experiments have resulted only in blurred-in-a-bad-way iPhone snaps of the Thames in the early hours after a raucous night out, then read on... We're offering you a 2½-hour night-time photography tour around London for only £19 - saving you 75% off One Vision Studio's price of £75. If you love London and you love photography then today's deal is for you. In a group of no more than 10 like-minded people, you'll take a tour around some of the best-loved sights of our capital, starting at the spectacular London Eye and moving across Westminster Bridge towards Charing Cross and Trafalgar Square, or the Golden Jubilee Bridge - the choice is yours! If you love that swirly light effect you've seen on night-time photos then you're in luck, because your professional photographer guide will teach you how you too can achieve it by using long exposure to play with light (fancy). He'll also show you how to adjust the settings on your digital camera to ensure your pics are, well, perfect! The tour lasts around two-and-a-half hours and cameras and tripods are available to hire if you don't have your own.