Camera obscura technology has existed since ancient times, the first known mention came from the Chinese philosopher Mo-ti in 400 BC. Aristotle, the Greek scholar and philosopher also described the principle of the pinhole camera and used it to observe a solar eclipse in 350 BC. The most famous memory is that of Leonardo da Vinci, he used it to study perspective, particularly light and shadow. The pinhole camera helped artists because they could now trace images, giving them the ability to create more realistic pieces. Although there were many earlier uses, the technology became more popular and improved around the 16th century. Camera obscura means "dark room" and can be described as a box in which light rays pass through a small opening and are projected upside down onto a screen. The opening is a small hole, which is where the camera obscura gets its other name, the pinhole camera. Camera obscuras started out very large and, over time, condensed into small wooden boxes, making them very easy to transport. In the 16th century, camera obscuras were used by painters and...