Wednesday, 13 June 2012

what we did, pinhole photography.

We had to go out and take an image using a pinhole camera. A pinhole camera is a simple camera without a lens and with a single small aperture. We used a light-proof box (a tin spray painted black) with a small hole in one side made with a pin. Light from a scene passes through the hole and projects an inverted image on the opposite side of the box, where the photo paper is. The human eye in bright light acts similarly, as do cameras using small apertures. We had to go out first in a large group and each use i different amount of time exposing the image so we could see how long the exposure needed to be for, and what would give us the best images. Once we'd done this we had to go out again and take our images. The tin we had took 22 seconds to create an image that could be seen and used. We then had to develop our images in the dark room, dry them and download them to blogger.
This is the first image we took with the pinhole camera before we uploaded it to photoshop and inverted it. (image adjustments, invert). This exposure was for 1min15.
Our inverted image.

The images we took with the pinhole camera after we new how long the exposure had to be for. Before they were inverted. These exposures were for 22seconds.

The images after we inverted them on photoshop.

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