"Welcome D-Y Students!"
Dennis -Yarmouth Regional High School
Traditional Darkroom Photography
Teacher: Mrs. Da Rocha
http://www.d[email protected]
“ You don’t take a photograph, you make it. " - Ansel Adams
Full awareness of what makes a good photo...
is essential in making great photographs.
" Canoe" by Angela Persechino
Photography (derived from the Greek photos- for "light" and -graphos for "drawing") is the art, science, and practice of creating durable images by recording light or other electromagnetic radiation, either chemically by means of a light-sensitive material such as photographic film, or electronically by means of an image sensor. Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. The result in an electronic image sensor is an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing.
The result in a photographic emulsion is an invisible latent image, which is later chemically developed into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.
Photography has many uses...
for business, science, manufacturing (e.g. photolithography), art, recreational purposes, and mass communication.
The result in a photographic emulsion is an invisible latent image, which is later chemically developed into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.
Photography has many uses...
for business, science, manufacturing (e.g. photolithography), art, recreational purposes, and mass communication.
http://en.wikipedia.org/wiki/Darkroom
A darkroom is a room that can be made completely dark to allow the processing of light sensitive photographic materials, including photographic film and photographic paper. Darkrooms have been created and used since the inception of photography in the early 19th century. Darkrooms have many various manifestations, from the elaborate space used by Ansel Adams[1] to a retooled ambulance wagon used by Timothy H. O'Sullivan.[2] From the initial development to the creation of prints, the darkroom process allows complete control over the medium.
Darkroom equipment
In most darkrooms, an enlarger, an optical apparatus similar to a slide projector, that projects the image of a negative onto a base, finely controls the focus, intensity and duration of light, is used for printmaking. A sheet of photographic paper is exposed to the enlarged image from the negative.
When making black-and-white prints, a safe-light is commonly used to illuminate the work area. Since the majority of black-and-white papers are sensitive to only blue, or to blue and green light, a red- or amber-colored light can be safely used without exposing the paper.
Another use for a darkroom is to load film in and out of cameras, development spools, or film holders, which requires complete darkness. Lacking a darkroom, a photographer can make use of a changing bag, which is a small bag with sleeved arm holes specially designed to be completely light proof and used to prepare film prior to exposure or developing.
Print processing/Photographic printing...
During exposure, values in the image can be adjusted, most often by "dodging" (reducing the amount of light to a specific area of an image by selectively blocking light to it for part or all of the exposure time) and/or "burning" (giving additional exposure to specific area of an image by exposing only it while blocking light to the rest). Filters, usually thin pieces of colored plastic, can be used to increase or decrease an image's contrast (the difference between dark tones and light tones). After exposure, the photographic printing paper (which still appears blank) is ready to be processed.
Photographers generally begin printing a roll of film by making a contact print of their negatives to use as a quick reference to decide which proofs to make.
The paper that has been exposed is processed, first by immersion in a photographic developer, halting development with a stop bath, and fixing in a photographic fixer. The print is then washed to remove the processing chemicals and dried.
“ Your first 10,000 photographs are your worst!"
- Henri Cartier-Bresson
- Henri Cartier-Bresson