Thursday 16 September 2010

PinHole Camera images

Pin hole camera 
Our pin hole cameras we constructed from a huge range of containers but i chose to use a shoe box. The first thing that we did was to paint the inside of the box so that the least amount of light was not reflected, then we mad a small hole with a pin in some foil self explanatory really. After constructing our cameras we started taking images and developing them, to take the pictures we had to leave the hole exposed to light for a period of time and because of the size of my box i had to do it for 1 and a half minutes. To develop we had to place the photographic paper that had caught the light into developing solution and this would produce the image as a negative. Then we dryed them


Purpose
The purpose of the task was to understand the science of photography i.e how the light is reflected causing the image to be rotated when taken.


What went wrong?
somethings that went wrong was the exposure time was a bit of on the final 2 images because i got the timings wrong and I didnt seal my container properly.


How to improve!
The next time I get a chance to do this I would maybe do a longer exposure time and use a better container one that kepps light out more


How to calculate F-Stops


distance from the paper  (mm)
diamiter of the pinhole (mm)                     =   F- Stop
 
What Are Apertures ?????
 
An Aperture is the hole in which light passes through to reflect the image onto paper or film. in early cameras for example PinHole cameras the light would reflect it and produce the image in a negative format and upside down but now with modern technology apertures can produse high quality images in stunning high definition with blurry pictures becomming a thing of the past with the invention of auto focus.











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