Thursday, 8 October 2009

Pinhole photography








Pinhole photography is lens-less photography. A tiny hole replaces the lens. Light passes through the hole and an image is formed in the camera.
Basically a pinhole camera is a box, with a tiny hole at one end and film or photographic paper at the other. Pinhole cameras are used for fun, for art and for science.
After researching a lot into pinhole camer's i decided to make my own pinhole camera using a round tin, hoping that the shape of the tin would create a panoramic effect on my photographs but it didnt work as planned. These are the images i got from my pinhole camera:

This image is the the unedited, negative version of a photograph i took using my pinhole camera. This was taken in the autrium at suffolk new college. I wanted to position my camera so that the first of the hanging lights was the main focus and the other lights faded off into the background as though they are dissapearing, although I dont think i positioned my camera well enough to achieve this effect. Although this is the only the only one of my pictures to display the slight panoramic veiw i was hoping to achieve using a round tin.
I then scanned the picture onto my computer and inverted it into a positive. I also changed the brightness and contrast slightly as the picture came out very dark after i inverted it. I expected this to happen as the negative is very bright, which is because i must have underexposed the camera and not left it for long enough.
This is the negative image of my first attempt at pinhole photography. This photo was the reult of an experiment to see how long the exposure time needed to be when shooting outsdie, using the focal distance as a rough guide. This picture was taken outside the entrance to college from floor level as i was hoping to get the floor in the foreground of the picture and the entrance to the college in the background. The picture didn't come out as i had hoped it would as the postitioning of the camera was very off and the ground ended up taking up over half of the picture. The camera is also pointed too far to the right meaning the entrance to the building is no longer the main subject.
This is what the picture looked like once i had scanned it and inverted it into a positive. Once getting this image onto the computer there wasnt really much i could do with it due to the fact that i overexposed the image which made it come out too bright once it was inverted.

This is the unedited negative image of a picture i took from the park near college. I was hoping to get a picture of the 'bridge' like walkway linking the north and the south building together, with the corner of the fence in the bottom left corner of the picture. I thought the bent bar's in the fence would give a good representation of something quite 'run-down' and vandalised, as i thought the future-istic style of the building would juxtapose and make the college look almost like a diamond in the rough. I was not able to portray this idea in the end as i positioned the camera far too close to the fence and the fence ended up taking up most of the foreground.
Once scanned onto the computer there was, again, not much that could be done with it once it had been inverted into a positive. I touched upon the brightness and contrast a little bit but there wasnt much work needed as i think i got the exposure time almost spot on in this picture.




































































1 comment:

  1. Some good posts here Marc, well done. Your images are well-composed and are a good representation of the week-long pinhole project.

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