Spectacular patterns can be created by the use of crystals, or
prisms. Apart from the special effect types available for use on the camera,
remember these can be used with the projector too, it is also interesting to
use old crystals borrowed from a chandelier.
Experiment with different crystals placed in front of the projector lens, not always
square on, and see how the image scatters according to the cut. The best results are
often found to be with a fairly small image within the transparency frame.
Quite a different pattern will be formed, by moving the crystal behind the lens. Obviously as these crystals are not optically perfect, the projected image
will lose some definition, but it can still be useful as a background image, as was the
case in plate 16 (above). This study was created with two projectors as
described in the next chapter.
Blu-tack has been found to be a good way of fixing the crystal, filters, or masks in
place. It is also used to form an easily changeable shape of mask, when applied
to a thin glass that is placed behind the projector lens.
One other useful aspect is that a colour spectrum can easily be formed with the
and made to appear wherever it is required.
Plate 17 (above) was created in
this way. No other light was needed. The cactus plant simply stood
in front of the projected rainbow colours and was then photographed in silhouette.
Black and White or Negative Images
Photography has the advantage of instantly reproducing an
image in a number of ways. Just by the selection of film the image can be in
black and white, colour, or in either of these choices it could also be in negative
form. All these can be projected!
Negatives can be unusually beautiful in themselves and they should not just be regarded as
the means of obtaining a print. The choice of projected images should not be
restricted to transparencies, but include film in all its forms. Black and
white images positives, or negatives can be projected and used. Colour can
still then easily be added to the black and white projected images, by the choice of
screen, as well as by the introduction of colour filters.
Many filters are available for the camera, and these
can be used with the projector too. But any bits of coloured cellophane can
also be used with the projector. There are hundreds of colours easily
available, as one only needs such small pieces. If it is possible to obtain a
sample swatch of transparent colours these will prove ideal.
Even if they are not optically of use with the camera, if used between the projector
condenser lens, and the film, they can influence the colour of the projected image,
without any optical problems. With care it is also possible to change the
colours of specific parts of the projected image.
Here is a good excuse for eating more of those sweets, after all those cellophane
now need to be saved!
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#johnnevillecohen #analoguephotography #Conceptual #Surreal #Dramatic
#Fantasy #Expressionist #artisticphotography #lightpainting #visualarts
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