Here is a shot of St Paul's - part of an ongoing project to photograph London landmarks as empty spaces. For this one I set up the camera for a two-hour exposure.

While there are plenty of excellent examples of long-exposure photography out there, this sort of technique tends to be used at night. The trails of traffic and bright neon lights make the city appear vibrant and colourful. My idea behind this project was to use the same technique but in bright midday sun to produce an opposite effect. The city space looks dead, void of any human activity and familiar landmarks appear eery in situ.

This effect is accentuated by the fact that a long exposure like this, shot in the midday sun, makes a digital image look like it was shot on film. Using an infrared filter on top of neutral density filters I can cut out at lot of nuisance IR light spilling onto the sensor, at the expense of muting the colours.