As well as being one of the most technical jobs I've undertaken, the photography of the Noble Lady Windows in the Lady Chapel of Liverpool Cathedral required the set-up and positioning of over forty pieces of equipment, most of which needed to be moved between shots.
Once the lighting had been positioned over the panel being photographed you only had to climb down the ladder, walk across the Well, through door number one, across a cluttered store room and through door number two, up the staircase to the founders plot, up more steps to the Children's Porch, through door number three leading on to the Lady Chapel Gallery, down the staircases to the floor of the Chapel up another ladder to position the camera, then test the flash whilst taking a light reading, now for the easy part, press the shutter release.
Now repeat twenty nine times, phew.
If only I could have walked through windows.