Cardboard Box Camera Obscura
Materials : • Small cardboard box at least 12x12x12'' we used a Home Depot "Small" size box (12x12x16'') as our lenses focal length was about 12'' • 1/2'' plywood or some similar stiff material • 73mm lens +2.5 or +3, we got ours from All Electronics this is the same meniscus lenses we use in our cardboard telescopes • 3'' id cardboard tube • Foam core • Black acrylic paint • 5x7'' plex mirror • Wood screws Tools: • Hot glue gun • Utility knife • Drill with bits for pilot holes • Screw drive/ screw drive bit • Ruler • Saw Recently we decide to do some more light experiments and came up with something that uses the same principle the Camera Projector on a larger scale. However, unlike the Camera Projector it is designed to allow you to draw the image created by the camera. While not practical to make with students it is intriguing demonstration piece that more clearly illustrates its optical mechanics