Pinhole Camera etc.

Pinhole Camera


A camera is a device that records images, either moving or still which comes from something called a Camera Obscura, which is Latin for “dark chamber.
A Camera obscura is an early mechanism for projecting images onto a wall, so if you were inside you could see what’s happening outside, the projected image is upside down though.
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.
An Aperture is an opening which light can pass through, this is measured in increments called F-Stops.
A lens captures the light from the subject and brings it to a focus on the film or detector.
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.

A pinhole camera is a small basic camera consisting of a box or a tin with an aperture in such as a pin sized hole. On my camera, I painted the inside and the lid black to make sure no extra light came in to ruin the photographic paper, then we put a piece of photographic paper in opposite the pinhole, sealed it tight, closed the aperture with the shutter which was a small piece of cardboard and then it was ready to use.
I have taken a range of pictures inside and outside with my pinhole camera all of which aren’t perfect as it took a while to know how long to leave it exposed.