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Pinhole Photography
may be made by gluing strips of cardboard to the back. Some simple
sketches of a 4 x 5 inch film holder camera made of cardboard:
❍ Sketch a – Side view
❍ Sketch b – End view
❍ Sketch c – Front view
❍ Sketch d – Top view of camera with back flap
I usually use 6 x 30 mm oak strip (1/4" x 1 1/4") as the basic material for
wooden camerasfor 4 x 5 in. film holders. The strips are glued together to
form 6 mm sheets. The sheets are sanded carefully, cut to the right
measurements and glued together to form a box with a simple spring back
for the film holder. The following is a general description of the
construction of a wooden 4 x 5 in. camera.
1. Get a 4 x 5 in. film holder.
2. Make a box of wood (Sketch 1). The internal width should be about
20 mm wider than the film holder. The bottom piece (A) and the side
pieces (B) should be about 40 mm longer than the top piece (C).
Sand the wood carefully before assembling the pieces.
3. Square moulding is glued to the internal angles in the camera to
make the construction stronger. Sketch x.
4. The back panel (D) is made of plywood. A window (E) is cut in the
back panel, the same size as the film holder's window
(dimensions ...).
5. A groove (F) is made in the back piece for the film holder's locating
ridge.
6. Two strips of wood (G), approximately 6 mm thick, are glued to the
back panel, one on the the left side, the other on the right side of the
film holder.
7. Two leaf springs (H) are made of a flexible sink drain (available at a
reasonable price in some hardware stores).
8. Each leaf spring is kept in place by a small piece of wood (I) screwed
on to the side pieces.
9. A hole (J) is made for the pinhole in the front panel.
10. The pinhole plate (P) is attached to the inside of the front panel. A
piece of wood (K) with a hole covers the pinhole plate; the piece of
wood is screwed on to the front piece from the inside.
11. A pressure panel (L) for the film holder is made of wood.
12. Two strips of 1 1/2 or 2 mm brass strip (M), to go under the leaf
springs, are screwed on to the pressure panel.
13. A handle (N) may be attached to the side panel of the camera.
http://www.photo.net/photo/pinhole/pinhole (16 of 28)7/3/2005 2:15:39 AM