Two years ago I described how a Victorian author described how to see ghosts everywhere, and of any colour. Now a three dimensional Victorian ghost.
Almost as soon as photography had been invented, stereo photography, followed, giving a view of the world in three dimensions. This involved taking a pair of photographs, each showing a slightly different view, then looking at them through a special viewer.
I have quite a number of stereo photographs, but I want to talk about just one. It has the snappy title of; Entrance to Necropolis, Glasgow. It dates from about 1880 and shows, as it says, then entrance to Glasgow Cemetery.
Now look closely, immediately in front of the gate is a shadowy figure, apparently a semi-transparent young woman.
This is, of course, a photographic trick, a double exposure. Exposing the photographic plate with half the necessary light, with the model standing by the gate, then again without her there. This is difficult enough in a studio, but to manage it outside is amazing, particularly in the latter part of the nineteenth century when an efficient light meter had not been invented, almost as hard a photographing a real ghost.