<p>Graphic Arts Page 1 Pin-hole Cameras</p><p>Pin-hole Cameras: This unit teaches the following visual communication concepts:  Camera parts  Accurate measuring  Darkroom chemicals  Matt cutting techniques and safety  Presenting photos (drymounting)</p><p>Step 1: The camera must be light-tight to get a good picture. Build the lens assembly, as follows:  Cut 5 matt board pieces to 4 inches by 4 inches square.  Using black gaffer tape, line up 4 pieces end to end and tape along the matt board seams. See Figure 1.</p><p>Figure 1.</p><p>4" x 4" matt Black gaffer board squares tape over seams</p><p> On the fifth piece, cut a hole in the center that is 1 inch square. See Figure 2.</p><p>Figure 2.</p><p> Tape the fifth piece to the other four. Be sure to line up the seams. See Figure 3.</p><p>Figure 3. Graphic Arts Page 2 Pin-hole Cameras</p><p> Now paint the back of your lens assembly (the side without tape) with flat black paint. Allow it to dry overnight.  While the lens assembly is drying, start the body assembly. See Step 2.  Fold the lens assembly to make a box and tape it along the seams using the black gaffer tape. See Figure 4. </p><p>Figure 4.</p><p>Step 2: The camera must be light-tight to get a good picture. Build the body assembly, as follows:  Cut 5 matt board pieces to 4 1/8 inches by 4 1/8 inches square.  Using black gaffer tape, line up 4 pieces end to end and tape along the matt board seams. See Figure 5. Note: This is the same process we used to build the lens assembly.</p><p>Figure 5.</p><p>4 1/8" x 4 1/8" Black gaffer matt board tape over squares seams</p><p> Tape the fifth piece to the other four. Be sure to line up the seams. See Figure 6.</p><p>Figure 6. Graphic ArtsNow paint the back of your body assembly (the side without tape) with flat black paint. Allow it to dryPage 3 overnight. Pin-hole While Cameras the body assembly is drying, install the lens and shutter on the lens assembly. See Step 3.  Fold the body assembly to make a box and tape it along the seams using the black gaffer tape. See Figure 7. </p><p>Figure 7.</p><p>Step 3: Install the lens on the lens assembly as follows:  Cut a piece of aluminum foil to 1 1/2 inch square.  Center the foil over the hole in the lens assembly.  Using the gaffer tape, carefully tape the foil over the hole. Use tape around the whole perimeter of the foil. See Figure 8. </p><p>Figure 8. Figure 9. Aluminum Foil Shutter</p><p>Lens Assembly Lens Assembly Aluminum Foil</p><p>Step 4: Install the shutter on the lens assembly as follows:  Cut a piece of gaffer tape 2 inches x 1 1/2 inches.  Fold the tape onto itself so about 1/2 inch of the sticky surface is left.  Use the sticky side of the tape to connect the shutter over the aluminum foil. Note: Line up the bottom and sides of the tape with the aluminum foil. See Figure 9.</p>