Monday, April 13, 2015

Pin Hole Camera Lab Report

Pin Hole Camera Lab Report
     The purpose of this lab was to be able to take pictures of objects in negative using a pin hole camera. We needed to learn how to build the camera and be able to make it work. We needed to discover what happened to the picture and why it turned out the way it did (upside down, backwards, e.g.).

  • Scissors
  • Duct tape
  • Cardboard box (cylinder)
  • Pin
  • Small aluminum square (pin hole)
  • Sandpaper
  • Black paint
  • Paint brush
  • Photographic paper
  • Chemicals to develop picture
     1)We began with picking out a cardboard box and receiving all the materials to make the pin hole camera.
     2)Next, we taped all the holes and corners of our boxes to make sure no light got in. Also, we made a lid for the box. Next, we painted the entire inside of our box and lid black and cut out a dime sized hole in the side of the box.
     3)Then, we sanded down a small piece of aluminum (with the piece of sandpaper) from a pop can so we could put it over the dime sized hole.
     4)Next, we taped the aluminum piece on the cardboard box. We also created a cover slip made out of duct tape to allow the box to be completely black on the inside. (Reasoning is to put the film paper in the dark room and take off the cover slip to take the picture)
     5)Lastly, after everything in creating the box had been finished, we were ready to begin taking pictures. We put the film paper in the box while in the dark room so it does not ruin the picture. After that, we had chosen a spot to take a picture at and took off the cover slip and left the pin hole camera in the same place without moving it for a couple hours (depending on the lighting).
     6)After the picture had been captured, we carefully put the cover slip back over the pinhole and went to develop the picture in the dark room. (Developing involves putting the film in multiple chemicals to start and stop the developing and finally in water to clean it.)

     During the experiment, I had learned many new things on how a pinhole camera works. The hole allows minimal light to enter the box and allows the film paper to be able to develop into a picture. The amount of lighting affects the picture taking process greatly. For example, the more natural sunlight/light in general, the faster the picture will be taken. However, we had to be careful not to leave the camera exposed for too long, otherwise the picture would turn out black because too much light had gotten in. Also, if not enough light had gotten into the camera, for example in a room with minimal light, the picture will not show up very great either. We had discovered that if any light had seeped through any cracks in the box that hadn't been sealed, the picture would have been ruined.
     After we had developed all the pictures, most of them were successful, with the exception of 1 or 2. I had altered a few things such as the place where I had taken the picture. Changing the place of where I had taken the picture gave me the opportunity the play with different amounts of lighting that the camera had let in.

1 comment:

  1. - nice purpose
    - good list of materials
    - instructions dont mention putting a pin hole in the aluminum
    - what was wrong with some of the pics?
    - need to specifically mention the time you left the camera open