I always carry a camera around with me – as well as my phone. Why? Because you never know when you might see something interesting enough to use as a stimulus for an article. And why both? Because each one gives better results in different lighting conditions. Interestingly, my camera, which boasts a Leica lens, copes less well than  my phone in the dark – which is why I used my camera for the night street scenes shown here. I like the slightly out-of-focus effect, and the fact that in one of them the darkness is almost overwhelming. I think if you teach you should encourage your students to always carry a camera of some description with them at all times. And if you are a Head of Department, encourage your staff to do the same. Here are my reasons.