Thursday 8 October 2009

Pinhole Camera Project.

For the pinhole camera project we had to bring in carboard boxes or tins. Which could be made light tight tins would work better than boxes for being light tight. So when we brought them in we had to paint the entire inside with black paint. This was so that no reflective surfaces were on the them so it wouldn't effect the photographic paper. Then we made a hole and and stuck a piece of foil over it and made a hole with a pin which would be our aperture. We also made a shutter for the aperture so we could open and close where the pin hole is so no light can get through into it and ruin our photographic paper.
Once we made sure it was light tight and suitable for taking photographs we had to measure the depth of the box so we could work out exposure time. The depth of my box was 46mm. Then we did some calculations which were. 46mm /0.8 = f 57.5 . F stands for focal point. Then we guessed the exsposure time needed to take a photo.mine was 20 seconds outside and 3 minutes inside. But before you go out and photograph somthing you have to cellotape down a piece of photographic paper for the image to appear on.
I tired the guessed times first time because i left the inside for to short and outside for to long. They didn't work well. So I played around doing different exposure times for inside and outside. I got different varied results from them both some of them didn't work well and others didn't so i went in between so the middle time between longest i left it and shortest and it worked well and i got good results. i also tried some portrait photo's using the pinhole camera. The portraits work rather good as you can see your outline and a clearly a figure but it all depends how long you leave it. after you have exposed the photographic paper you close the shutter then take it to the dark room while keeping it unexposed from light. In the dark room they have safe lights so its fine to open the box and take out your photographic paper. There was two solutions in the dark room developer and fixer you first had to put it in the developer and then in the fixer both for about 30 seconds to a minute. The paper would go black and dark if you have over exposed it to light but if you under exposed it the paper would come up foggy and white. I enjoyed doing the pinhole camera project and i think my photographs came out pretty well as it was my first try.

1 comment:

  1. Great work Matt - your determination has paid off with you creating some very interesting images. You've complemented these photographs with detailed captions and demonstrated clear knowledge and appreciation of what you were trying to achieve. More information on the principles of image making would have also helped to explain what you were doing on this week-long project however.

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