Pinhole Cameras

A pinhole camera is a very simple camera with no lens and a single very small aperture. Simply explained, it is a light-proof box with a small hole in one side. Light from a scene passes through this single point and projects an inverted image on the opposite side of the box. Cameras using small apertures and the human eye in bright light both act like a pinhole camera.

In the week, we made our own pinhole camera's in which we use various different bases for our camera such as pingle tubes and shoe boxes to create a light tight box for our image to be projected into. By useing a small sheet of foil with a pin prick in it we were able to project an image onto some photographic paper. Afterwards we developed the paper to create the negative images.

Each image, both outside and inside, included us making subtle changes to the exposure time to get the image just right.

Here are a few examples below...










This is supposed to be a picture of an Orengina Can and a Costa Coffee cup on a bench outside the college. It didn't turn out too bad but I think it could of done with just a bit less exposure.








This was of a tree outside. The exposure was a bit off buy you can still make out one of the larger trees in the middleground. Again, the exposure time is what made the quality of this photo lower than it could of been.

This picture of the atrium was exposed for 40 minuites. The long exposure time seems to of captured the rays of dust reflecting light over a long period of time which has created a ghostly effect.

This image turned out too light initially due to being under exposed. After being inverted you can barely see the outline of the trees, swings and fence.

This is the original of the Atrium picture before it was inverted. In this view you can see the light spots eluminated in black as well as some ghostly figures on the opposite balcony highlighted in black.