Tuesday, November 2, 2010

Processing Black and White photos

1.List the materials (equipment) necessary to process black and white film

  • A metal or plastic film tank
  • Three dark plastic containers to hold chemistry
  • Graduates (used to measure chemicals)
  • A darkroom timer
  • A can opener
  • A room that is totally light proof (not even the slightest sliver of light should be visible).
  • Developer (see other sidebar)
  • Glacial Acetic Acid (optional, for Stop Bath)
  • Fixer (Kodak Rapid Fixer with Hardener is highly recommended)
  • Hypo Eliminator   
2.List the chemicals we might be using in the darkroom and where one would buy those chemicals
  • Developer, which causes the silver iodide of the film or paper emulsion to darken if it has been exposed to light.
  • Fixer, which removes the undeveloped silver iodide from the emulsion. 
  • A chemical used to completely stop the development process is called stop bath, and is used between the developer stage and the fixer stage in both b&w film & paper processing. 
  • You can buy these chemicals at any good camera store, if not you can also buy online.                                         
3.) Summarize in one or two paragraphs the process from start to finish 
You first load your film. Second, Mix your developer, stop bath, and fixer in the appropriate quantities and concentrations. After that, you check your times and temps. Remove the fill cap on your tank (not the lid), pour the developer quickly into the tank, tap the tank on a counter top to remove air bubbles, replace the fill cap, do 5-10 inversions, and start the timer. Do another 5-10 inversions every minute for the remainder of the development cycle. At :30, remove the fill cap and prepare to dump out the developer. At :15, start pouring the developer out (keep it if reusable, or dump it if one-shot). Then, you use your stop bath which only requires :30 S. Pour Fixer after the last step, and after your done with that you pour in water and wash it.
After you're done with all that, dump the remaining water from the tank and remove the film reel or reels.

4.) Post a photo of the equipment necessary to process film 
  5.) Post a photo of the chemicals necessary to process film
  • 1. Contact sheet-photographic image produced from a film, usually a negative
  • 2. Agitation-Keeps a chemical moving
  • 3. Enlarger-To make something larger
  • 4. Developer-A solution used to make visible the image produced by allowing light to fall on the light-sensitive material
  • 5. Stop Bath-an acid bath used to stop the action of a developer
  • 6. Fixer-Used to remove residual  grain from films and prints when processing them

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