Camera Obscura is elementary tool to catch a light and make him to be captured on sensitive paper. After the development I get negative image, and then I scan it and process through photoshop to positive image. Fox Talbot called the photography "a pencil of nature", but he is really intend those words. When I put my Camera Obscura box in some place I have only limited ability to imaginate which picture my box is really catched, before I developing the sensitive paper. Each picture exposed 2 to 6 minutes and it's very long time, especially than you know how much time takes come back to laboratory and do develop it. No lenses, almost no ability to see how this box is looking at the things. Each time I can put only 1 peas of paper, so full process can take between like an 1-2 hour. So, enjoy the result.