Here are some of my images from the Balliol 750th Commemoration Ball that I made on medium format film. Once the sun had gone down I decided to switch to using only black & white film because I like how classic it looks – with lots of different coloured lights in the evening it can be quite distracting. The live acts in the second grid were King Charles (who were amazing) and Mark Ronson DJing. It was the first time I had photographed a live band with a twin lens reflex camera and although a bit of a challenge it was really good fun. With only 12 frames on a roll you really have to pick your moments carefully.

[Tech info:] Mamiya C330f, 80/2.8 lens, loaded with Kodak Tri-X 400 rated at ISO1600. Processed in Kodak HC110 1+31.