Pinhole Camera's

Pinhole Camera’s

To produce our photo’s we made a pinhole camera. To make our pinhole camera we had to bring in a light tight tin/box and paint the inside black and cover up any gaps that may let in light with gaffer tape. Then we made a hole in the side, and then covered it with foil and made a pinhole through the foil, then made a small door like feature to open and close over the pinhole.
To take a photo we had to measure the amount of time we let the light enter through the hole for inside and outside conditions. To do this we had to work out the f-stop of our individual cameras, which was simply the focal length divided by the diameter of the pinhole, mine was 75mm/0.8mm.

In the dark room you have to put your photographic paper in your camera before you set out. To develop our photo’s we also had to take them out of our camera in the dark room, put them in the developer until your happy with your image, in the fixer for a minute and a half and then into the cleaner.

My first photo was over exposed so I then went on to change the amount of time I let light in. And in the end came out with a few clear images that I was very pleased with.


Basics we learnt about cameras/photography:

Shutter – In photography, a shutter is a device that allows light to pass for a determined period of time, for the purpose of exposing photographic film or a light-sensitive electronic sensor to light to capture a permanent image of a scene.

Aperture- in optics, an aperture is a hole or an opening through which light travels. In photography this can be measured in increments called f-stops.

Lens- The lens of a camera captures the light from the subject and brings it to focus on the film or detector.

Exposure control- The size of the aperture and the brightness of the scene controls the amount of light that enters the camera during a period of time, and the shutter controls the length of time that the light hits the recording surface.
Equivalent exposures can be made with a larger aperture and a faster shutter speed or a corresponding smaller aperture and with the shutter speed slowed down.

Photographic paper- is paper coated with light-sensitive chemicals, used for making photographic prints.




My photo's :)



These are the positive and negatives of the photo's!

These first set are outside shots of the college, this had a 10 second exposure, i like this one best out of the lot as its the most clear!