What is a pinhole camera?
Pinhole Camera is basically a box that keeps all the light out, with a small hole at one end to release a concentrated piece of light. If the image is required, a piece of film is attached to the other end of the box that captures the light that comes. The Obscura camera is basically a large hole camera, and has long been like the 15th century, Leonardo da Vinci spoke in respect of the simplicity and size of the device. Euclid's basic principles were outlined in Greece more than 2300 years ago.
To create a reasonably good hole camera, start with a robust box. Many people suggest oatmeal containers. Drill or trim a small hole in the box, probably in the middle of its surface. Painting the inside of the Black-Sprey Paint box works best. Cut a small piece of aluminum and pierce a very small hole in it; 1/100 inches (0.25 mm) is ideal. Glue the aluminum piece inside your box, so a small hole is placed on a larger slim you in the box. Now close the holeKu and placing the film in the box opposite the hole you are ready to take a picture of just revealing the hole. Like the standard camera, you end up with negatives that can be developed in a dark chamber into full prints.
Pinhole Camera works essentially the same way the camera works. The difference is in distinction. While the lens takes the scattered rays of light and focuses on the cone or interferes with the film (simply speak), the hole works so that it allows such a small opening that the beam coming is relatively small and therefore remains relatively non -life. Unsaturated beams create clear pictures. The larger the hole, the more distracted light and the less sharp the resulting image.
Pinhole Cameras have a great attraction for teaching basic optics for children and adults, as Arsnadno is created from cheap materials and the resulting photos are fun and exciting. Changing the exposure time and giving backThe film from the hole can be efficiently controlled by F-Stops photos and create a wide range of effects.
Pinhole Cameras also offer an easy real -time way to display solar eclipse that are harmful directly to display. By cutting a very small hole in a piece of cardboard or aluminum and its location in front of a flat surface, a "video" of an eclipse that could look without damage to the retina. (do not use the hole to direct the sun) .
Professional hole cameras are available for about $ 100-400 (US dollars). Because of their incredibly small size, they are ideal for hidden supervision. Most professional holes are digital, although some cheaper models that are not intended for supervision are available for use with 35mm film.