La fotografía estenopeica fue uno de los comienzos de la fotografía **ya que es una técnica muy, muy simple por la cual se puede proyectar una imagen definida en un plano o película sensible**. Consiste simplemente en una lente, que en si no es una lente ya que carece de cristales, y en la mayoría de los casos es un papel metálico o de cartón oscuro con un agujero minúsculo en el centro, a través del cual pasa la luz. Debido que la apertura es muy pequeña, su [profundidad de campo](http://altfoto.com/2010/10/profundidad-de-campo) es muy grande por lo que no necesita de elementos de enfoque. Uno de sus mayores problemas (o beneficios, depende de como se lo vea) es que justamente por su apertura pequeña, la cantidad de luz que ingresa a la cámara es muy pequeña, obligando a utilizar velocidades de obturación muy, muy largas.
La fotografía *pinhole* es casi nativa de las cámaras analógicas, **pero es posible hacerlo con sus versiones digitales**. Aquí mismo, hace un tiempo ya, [te comentábamos como realizarlo con tu DSLR](http://altfoto.com/2010/10/pinhole-con-tu-dslr). Es muy sencillo, solo requiere de algo de paciencia, materiales comunes y sacrificar la tapa de la cámara. Pero el problema principal de este método es el ingreso de polvo y suciedad al sensor [que tanto odiamos aquí](http://altfoto.com/2010/10/como-evitar-que-se-ensucie-el-sensor-de-tu-reflex). Para evitar este problema existen las lentes *pinhole* prefabricadas.
Las lentes *[Skink Stainless Steel Pinhole Pancake Lens](http://www.rugift.com/photocameras/skink-stainless-steel-pinhole-pancake-lens.htm)* **son construcciones de metal inoxidable, con montura EF, lo cual lo vuelve compatible con cualquier reflex moderna de la linea Canon**. Al ser totalmente de metal, el cambio y uso de esta lente tiene el mismo potencial y riesgo de polvo que cualquier otra lente, siendo mucho mas bajo que cualquier lente casera. Su longitud focal es de 45mm y en combinación del [disco *pinhole* de 0,3mm](http://www.rugift.com/photocameras/laser-drilled-pinhole.htm) tiene una apertura de diafragma de f/150.
Su precio es algo prohibitivo y en cierta manera elimina el gusto casero de la fotografia estenopeica, pero si quieres experimentar con ella de manera habitual y segura, es de lo mas recomendable. **La lente tiene un precio de $85 dolares y el disco de $39 dolares**.
Photography help?1: To prove that photography was ineedd an art, and not just a craft, photographers at first imitated the painting of the time. TrueFalse 2: The 35-mm camera by Oskar Barnack of the Ernst Leitz company was also known as the candid camera. TrueFalse 3: Photography has been used to document many important historical events including World War II and the Great Depression. TrueFalse 4: One of the advantages of digital photography is that images created cannot bemanipulated or changed and will be saved permanently in an inalterable state. TrueFalse 5: A photogram, created as a sketching device for artists, consisted of a small, lightproof box with a pinhole or lens on one side and a translucent screen on the opposite side. TrueFalse 6: Sir John Herschel discovered in 1819 that hyposulfite of soda was suitable as a fixing agent for sensitized paper images. TrueFalse 7: The daguerreotype was reproducible and could be used to produce images intended for mass distribution. TrueFalse 8: The calotype’s paper negative made possible the reproduction of photographic images. TrueFalse 9: The Calotype Method, also known as the wet plate technique, involved coating a glass plate with silver iodide in suspension, exposing it while still wet, and developing it immediately. TrueFalse 10: By the last quarter of the 19th cent. most households could boast respectable photographic collections. These were in three main forms: the family album, scrapbooks, and boxes of stereoscope cards.TrueFalse 11: George Eastman’s first camera, which he called the Kodak, was first offered for sale in 1888. TrueFalse 12: George Eastman developed the Brownie, a simple and very inexpensive box camera that introduced the concept of the snapshot. TrueFalse 13: The Polaroid Model 95 was the world’s first viable instant-picture camera. TrueFalse 14: The first fully practical color film, Autochrome, did not reach the market until 1907. TrueFalse 15: Black and white film is made up of a chemical mixture protected by a thin plastic layer. This chemical mixture is called a blend. TrueFalse 16: Energy from the sun comes to the Earth in visible and invisible portions of the electromagnetic spectrum. Human eyes are sensitive to a large portion of that spectrum that includes visible and some invisible colors. TrueFalse 17: Advertising photography, photojournalism, editorial photography, and fine art photography are all considered types of commercial photography. TrueFalse 18: Color depth is the overall accuracy with which the colors in the photograph match or are capable of matching those in the original scene. TrueFalse 19: A bitmap is a card containing chips that store images. TrueFalse 20: Pixelization is an effect seen when you enlarge a digital image too much making the pixels more noticeable. TrueFalse 21: Natural light generally refers to daylight and artificial light is illumination produced by man. TrueFalse 22: Sidelighting occurs when the main source of illumination is behind the subject, shining in the direction of the camera. TrueFalse 23: The National Press Photographers Association (NPPA) was founded in 1946 in the U.S., and has approximately 10,000 members. TrueFalse 24: Street photography is also known as Straight Photography, implying it is the pure vision of something that was, like holding up a mirror to society.TrueFalse 25: An aperture is a hole or an opening through which light is admitted. TrueFalse 26: A device called a lens usually serves as the aperture stop, and controls the aperture. TrueFalse 27: A light source’s color temperature is determined by comparing its hue with a theoretical, heated black-body radiator. TrueFalse 28: The depth of field (DOF) is the distance in front of and behind the subject which appears to be in focus. TrueFalse 29: Larger cameras have deeper depth of field than smaller cameras. TrueFalse 30: Filters on a camera lens, or color gels over the light source(s) can be used to correct color balance. TrueFalse
Me referia a hacer una con materiales comunes; digamos que no tengo camara
si lees el articulo donde pone»te comentábamos como realizarlo con tu DSLR» pinchas y ya tienes el articulo…
Agradeceria publicaran un post o un tutorial de como hacer una cámara estenopeica