A pinhole camera is the simplest camera possible. It is a small, light-tight can or box with a black interior and a tiny hole in the center of one end. Light from a scene passes through this single point and projects an inverted and reversed image on the opposite side of the box. The film inside the camera records the image that comes in through the pinhole.
Usually fans use common household materials, wood, plastic or metal, to make such a camera to produce pictures. But maker Todd Schlemmer over on Thingiverse has created a pinhole camera with a 3D printer.
This PINH5AD Pinhole Camera uses 4×5" film, an inexpensive way to get into large format photography. The main advantage of large format photography, is higher resolution. A 4×5 inch image has about 16 times the area, and thus 16× the total resolution, of a 35 mm frame.
The only part which is not 3D printed is a 4×5″ film holder. Schlemmer writes:
The P5 is designed around a 4x5 film holder, widely available used or surplus. Film holders have a "dark slide" that protects unexposed film/paper from light, so the rubber band to close the shutter is not necessary (or desirable for long exposures).
Using the proven Pinhead shutter design, and lacking any film transport mechanism, the shutter blade is the only moving part.
There are no sample pictures from this camera. But the camera is available for download from Thingiverse, so other makers can build on his design.
Here are some photos taken from PINHE4D, a 35mm 3D printed pinhole developed by Schlemmer which uses the same mechanism.
Posted in 3D Printing Applications
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schlem wrote at 9/19/2013 8:44:18 AM:
schlem wrote at 9/19/2013 8:41:23 AM: