Physic

A unique stage of progress in photography is the discovery of the pinhole technique. The history of the pinhole technique originated with observations made by Aristotle’s in the 4th century (Chernewski 2010). This philosopher was known for writing about his interpretations regarding pinhole photography. Following Aristotle’s observations, philosopher Mo Ti conducted experiments geared towards researching the properties of light. Mo was able to determine that light travels in straight lines (Grepstad 1996). Upon discovering that light travels in a straight line, Mo was able to record the formation of an inverted image with a pinhole camera (Grepstad 1996). Although Mo was able to understand the pinhole technique, it wasn’t until the 16th century when Leonardo Da Vinci was able to provide a clear description of a pinhole camera (Chernewski 2010). The end result of these philosophers’ experimentations was the development of the pinhole technique using a pinhole camera. They were able to create a new method in which people could capture images through photography.

Following the analysis on the history of the pinhole technique, the next step is to understand the description of a pinhole camera. David Balihar refers to a pinhole camera as a simple optical imaging device in the shape of a closed box or chamber (Balihar 2013). The pinhole camera is different from most photographic devices, in the sense that it does use a lens. Furthermore, a pinhole camera has an infinite depth of field. To explain further, most cameras have a limited depth of field and must be adjusted for an object to come into focus. With a pinhole camera, all objects in the field of view are in focus no matter how far there distance is. As stated previously, this is be...

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...onducted my analysis on the effects of a change in aperture size for a pinhole camera, the instructions required that four or five small holes be punched into the aluminum foil piece. Each hole should be similar to the original pinhole size. I made sure that each hole was well separated from the original hole. When viewing the image of the bulb, more light rays were able to enter, resulting in an increase in the brightness of the image. In addition, the image reverted to right-side up.

For the final section, I would like you to take into consideration that when I changed the aperture size, it popped the aluminum piece out of place. I didn’t have time to make another camera with other finals so I decided to submit a picture of the camera prior to changes. Hopefully my report will be sufficient enough to show that the camera worked during the process of the project.