Saturday, March 4, 2017

Silver-Based Photographic Process

At one time, the silver-based exposure process was the cornerstone of modern photography. "Do you need to discover digital photography approaches that carry professional photographers to where they are today? Well, The Top Secret Photography Techniques would help you out in doing so. To obtain impressive photographs we first need to look at some essential photography strategies. The preliminary one I am able to share with you is discover about light. You can find every little thing about photography techniques on , The Top Secret Photography Techniques. Anytime you learn about light and in what approach it interacts with the direct environment then your photos will get much better..". That is, until the digital camera came along and changed the playing field. In the past, just about all photographic imaging was based on silver-based photographic chemistry. The use of silver chemistry has not ended, but instead, it is a secondary method of creating photographic images that is overshadowed by the digital process. Today, silver chemistry is still needed to produce x-rays, silkscreen emulsions and high-quality black-and-white prints.

Instructions

Processing Film

    1

    Unload the film from your camera, place it onto a development spool and then put the spool in a development tank. This step is done in total darkness, but involves no changes in the silver chemistry of the film. Once the film is safely enclosed in the development tank, the film processing can take place in a lighted room.

    2

    Add the film developer through the special opening at the top of the development tank. The developer is designed to interact with the complex layers of silver chemistry that are already on the film. In essence, the developer reacts with those particles of silver that have been exposed to light and have consequently experienced a chemical reaction when struck by the light rays.

    3

    Leave the developer in the tank for the prescribed amount of time and then empty the contents of the tank into a storage container before disposal.

    4

    Fill the development tank with an acidic stop bath. The stop bath has a specific chemical formula that is designed to halt the chemical reaction that occurs between the developer and the exposed chemical particles that are embedded in the film. Even though the developer has been poured out of the development tank, residue amounts of this liquid can still react with the film.

    5

    Remove the stop bath liquid and place it in the same container with the used developer.

    6

    Add the fixer to the development tank. The fixer bonds with the tiny particles of silver that were not exposed by light, but has no reaction with other silver ions created by contact with a light source.

    7

    Empty the fixer from the development tank. When the fixer is poured out of the development tank, it also carries with it the extra silver. That is why all used fixer is saved and put through a silver recovery process. Now the film can be removed from the tank and washed for about ten minutes. This is also a good time to preview the negative images, because the development process is now complete. The washing is necessary to cleanse the film of all excess residues, which at this point should be minimal.

    8

    Hang up the film to dry.


  • Photographic Process and Early Photograms

    www.photograms.org/chapter02.html

    The Photogram - a History Captured Shadows The shadows that things make, The things that shadows make by Les Rudnick 2004-2011 Les Rudnick


  • photography: Definition from Answers.com - Answers - The Most ...

    www.answers.com Library Literature & Language Dictionary

    photography n. The art or process of producing images of objects on photosensitive surfaces. The art, practice, or occupation of taking and printing


  • Darkroom & Film Processing Equipment - Paterson Photographic

    www.patersonphotographic.com/patersondarkroom.htm

    Paterson darkroom & film processing equipment includes film developing tanks, measuring graduates, film enlargers & print washing equipment.


  • Photographic Silver Recovery eHow - eHow How to Videos ...

    www.ehow.com Electronics Cameras Film Cameras

    Developing any type of photographic film--35mm, X-ray, etc.--leaves deposits of silver in the fixer during processing. If poured down a drain and into the water ...


  • Ilford Black & White Film - Ag Photographic. The Specialists for ...

    www.ag-photographic.co.uk Black & White FILM

    Ilford s famous range Since 1879 Ilford has been committed to real silver based Black White photography All film and paper is manufactured at the


  • Articles on Photography

    unblinkingeye.com/Articles/articles.html

    Articles on photography and alternative photographic processes. ... The Effects of Pyro Stain in Platinum Printing. by Bob Herbst. Demonstrates that a longer ...

  • Daguerreotype - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Daguerreotype

    The Daguerreotype process, / d r t a p / (also called Daguerreotypy) was the first practicable photographic process. Using the camera obscura (a ...

  • Chemistry of Photography - UThink: Blogs at the University of ...

    blog.lib.umn.edu/amattern/1701-2012-spring/Chemistry%20of%20... PDF file

    Chemistry of Photography While it is easy to make comparisons between the pupil of the eye and the f-stop of a camera or between the retina of the eye and ...

  • Photographic print toning - Wikipedia, the free encyclopedia

    en.wikipedia.org Color gradient palettes

    In photography, toning is a method of changing the color of black-and-white photographs. In analog photography, toning is a chemical process carried out on silver ...

  • MikeWare - Alternative Printing: A Conspectus

    www.mikeware.co.uk/mikeware/Conspectus.html

    Alternative Printing: A Conspectus. Processes The full gamut of photographic printing processes may be little-known to contemporary photographers, who have been ...

0 comments:

Post a Comment