Before I began to build my pinhole camera I needed to bring in a box, tin, tub or anything that could be made completely lightproof. I brought in a long shoe box. After this I marked a square about the size of a stamp at one end of my box, I then cut this out using a craft knife. I painted the inside of my box black, including the lid. I needed to make sure my box was completely covered in the black paint for best results. Whilst waiting for the paint to dry, I measured the length from one end (where my hole was) to the other end of my box. I measures 275mm, from this measurement I was then able to calculate the F-stop number which is the amount of time needed to capture my picture, I did this by dividing 275 by 0.8 which was;
F-343.75 To work out how long I needed to leave my shutter open inside and outside, we created a scale for an aperture size of F90 which made the exposure time for indoors, 4 minutes and for outside 30 seconds out) using this information I worked out that to take a picture inside I needed to leave it for 16 minutes indoors and 1minute 20 outside.
Once my paint was dry I cut a piece of foil to size to fit the hole in my camera, this was to be my lens. In the centre of the lens was a pinhole. I also need to make a shutter; I made this from black duct tape. I placed this over my lens lightly so I could still lift this up to reveal the lens or close it to hide the lens, It was still vital that when my shutter was closed it was impossible for any light to pass through the camera.
The next thing I did was load my camera. This process had to be done in the darkroom. I brought my box into the dark room, and cut a piece of photographic paper to fit the end of my box. I stuck this down using double sided tape. After I made sure my paper was secure and I had stuck it the right way round, shiny side facing out I could then put the lid onto my box. It was vital to make sure that no light could get into my camera at all; if it did it was ruin the whole picture. The lid to my box had tiny gaps so I sealed this with duct tape. I also had to make sure my shutter was closed before I exposed my finished pinhole camera to the light outside the darkroom.
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