As part of our visual diary of the photographic techniques course, we have to make a pinhole camera and use this (or another method that can take an image without a lens) to study self portraiture.
A pinhole camera is a very simple camera without a lens. It is a basically a light proof box with a small aperture (or opening). Light from a scene, then passes through the small aperture and projects an inverted image on the opposite side of the box. Some light sensitive paper is attached to the opposite side of the box. Once exposed to light we develop the paper in the usual way - this produces a paper negative, much like in photograms. We can produce a paper positive, by placing the paper negative (emulsion side down) on top of a new sheet of paper (emulsion side up) and project light onto it and develop again.
Just like in a SLR camera, the size of the aperture and focal length will determine how much time we need to expose the paper to light to get a good well exposed image. These times and aperture sizes are proportional so relative exposures can be calculated.
I'm excited about the prospect of this and intrigued at how the images will turn out. Its a part of photography that I've always wondered about, so I'm looking forward to it. I will be creating my camera out of a shoe box - hopefully I will be able to use both the length and width of the shoe box to have a camera with multiple focal lengths.
The art of pinhole photography seems to be quite a popular one. I came across an article on Smashing Magazine that had an article The Showcase of Beautiful Pinhole Photography showing some wonderful images created by pinhole cameras. These images were taken from the smashing magazine website and credit is due to the individual photographers: Scott Speck, Mackeson, Teiko respectively.
A pinhole camera is a very simple camera without a lens. It is a basically a light proof box with a small aperture (or opening). Light from a scene, then passes through the small aperture and projects an inverted image on the opposite side of the box. Some light sensitive paper is attached to the opposite side of the box. Once exposed to light we develop the paper in the usual way - this produces a paper negative, much like in photograms. We can produce a paper positive, by placing the paper negative (emulsion side down) on top of a new sheet of paper (emulsion side up) and project light onto it and develop again.
Just like in a SLR camera, the size of the aperture and focal length will determine how much time we need to expose the paper to light to get a good well exposed image. These times and aperture sizes are proportional so relative exposures can be calculated.
I'm excited about the prospect of this and intrigued at how the images will turn out. Its a part of photography that I've always wondered about, so I'm looking forward to it. I will be creating my camera out of a shoe box - hopefully I will be able to use both the length and width of the shoe box to have a camera with multiple focal lengths.
The art of pinhole photography seems to be quite a popular one. I came across an article on Smashing Magazine that had an article The Showcase of Beautiful Pinhole Photography showing some wonderful images created by pinhole cameras. These images were taken from the smashing magazine website and credit is due to the individual photographers: Scott Speck, Mackeson, Teiko respectively.
| http://media.smashingmagazine.com/wp-content/uploads/images/pinhole-photography/chain-in-space.jpg |
| http://media.smashingmagazine.com/wp-content/uploads/images/pinhole-photography/Mackeson2.jpg |
| http://media.smashingmagazine.com/wp-content/uploads/images/pinhole-photography/TEIKO.jpg |