The Challenge: Make a camera and film
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On Capraia, we used a mud paste to plug any holes in the box and thus prevent
stray light from entering the only light you want in the box is that coming
through the lens. As a final touch, we built a simple tripod to support the camera
while we were "out on location."
Having positioned the camera so that a high-contrast image was visible on the screen,
we focused the image and placed the home-made photographic paper on top
of the screen. Unfortunately, our castaway film was very insensitive and
even after about 30 minutes' exposure (in late-afternoon sunshine)
no discernible image formed on it.
This is hardly surprising. We really needed to treat our castaway "film"
with a developer, as we would if we were using proper photographic film;
the developer enhances the initial image that forms on the film. We also
needed much longer exposure times than we had available at the end of this
particular three-day challenge.
Tips for doing it yourself