For this project, we created a pinhole camera from a cardboard box, some shopping bags, tape, and index cards.
School
Tree
We noticed a general increase in image quality with increasing pinhole size. However, there are a number of other issues. One is that the hole for the lens was slightly too large and clearly allowed light into some of our pictures, resulting in bright spots. Additionally, the shopping bags we used in leiu of black paper can be seen in some of the pictures.
Taken with the best size, which we found to be 5mm for our setup.