Light Painting in Dark Places

After seeing other peoples shots of dark places such as drains and tunnels, I decided to have a go for myself.

So experimenting with long exposures, 30 seconds and longer, and a mid range aperture in a couple of disused railway tunnels.

Setting the Camera

With long exposures you need to keep your camera shake free so the use of a Tripod and cable release is essential, I picked my shot and set my camera in the dark getting focus manually on long shots and shooting off a flash shot to attain focus on closer in shots (Switching to manual focus once happy so as to lock it at that distance).

I was shooting in the camera's Manual Mode so as to set exposure time to the 'BULB' setting, I chose an aperture of F8 so depth of field would...