Pinhole cameras take photos without the need for a lens, just using the rectilinear propagation of light (that it travels in straight lines). The smaller the pinhole, the sharper the image, but with the pay-off that the exposure time must be longer and your subject needs to stay still for longer too.

These photos were taken and developed on the Prep School Science open afternoon by the boys and girls who visited Bryanston. The pinholes were about 0.3 mm in diameter and the exposure times were about 120 seconds.

After scanning the negatives they were digitally manipulated to give the positive images seen below.