How to make a camera

The steps of making a camera: preparing materials, making lenses, adjusting and taking pictures.

1, prepare materials. The materials for making the camera include hardcover liquor wooden box, pinhole, 120 negative, tools (a saw blade, an art knife, a bottle of ink, a small aluminum can, a sewing needle and a little glue), and the remaining opaque box film.

2. Make a shot. Roll up the convex lens with slightly thicker opaque paper, the length is about equal to L-a, and install the convex lens at one end. Then make a circular paper tube, the diameter of which is slightly smaller than the lens. Cut 10 small openings vertically along the height direction at one end and spread them out. Like a sunflower, insert this paper tube into the round hole of the carton, and the cut part will stick to the inner wall of the carton. Put the lens on the paper tube and you can see the distant scenery (inverted image, reduced) from the plastic film with square holes.

Step 3 adjust. If the scene is not clear, you can adjust the length of the paper tube and lens and cut off a circle appropriately.

4. take pictures. Put the photographic paper into the camera to ensure that the photographic paper is in the correct position. Turn on the camera's display and aim at the subject. Press the shutter button of the camera gently to finish shooting.

The role of the camera:

1. Recording life: The camera is one of the important tools to record life. By taking photos or recording videos, people can record every bit of life, including people, scenery, food and so on. These photos and videos can be valuable materials for people to recall and share good times, and can also be used to record important historical events and cultural heritage.

2. Artistic creation: The camera is also one of the important tools for artistic creation. Through photography technology, people can create unique works of art, for example, by adjusting light, angle and composition to create unique pictures and effects. Photographic works can convey the author's emotions and thoughts and become one of the important ways to express personal creativity and feelings.

3. Scientific research and recording: Cameras also play an important role in scientific research and recording. For example, in the fields of biology, geology and meteorology, cameras are used to record and observe natural phenomena and biological forms. At the same time, in the medical field, cameras are also used to shoot pathological sections and image data, providing important support and basis for medical research and diagnosis.