Objectives:
- To learn and apply aspects of chemistry discussed in class - To be able to define the role chemistry plays in cameras and film development - To witness the chemical reactions that occur in film development Procedure: [see the next link for diagrams] 1. We removed the film from the camera in a darkroom area with absolutely no light and placed into a canister. From there, the film was placed onto a processing reel and rolled up by hand, again in total darkness.The reel was placed into processing tank and was securely sealed. 2. Being sure never to expose the film to light, we began the developing process. 3. First, we "pre-soaked" the film in water for a minute, using a controlled, continuous motion to ensure the film was probably washed. 4. We then mixed an equal amount of D-76 stock and water and brought the solution up to 21 degrees Celsius. We poured the solution into the processing tank and sealed it again. From there, we continuously agitated the tank*, by inverting it, for the next 9 1/2 minutes. 5. We discarded the developer and immediately added water to the tank. We filled and dumped the water two times before moving on to the next step. 6. We then filled the processing tank with a fixer solution and continued to agitate on and off for about 7 minutes. (Following this, we stored the fixer back in a container.) 7. The film was then washed with water 10 times, with a few seconds allotted for each wash. 8. A Perma Wash solution was added to the tank. We agitated by inversion for a minute. 9. The film was washed again, in this case, 30 times. 10. The final chemical to be added was Photo-flo, which we swished around the processing tank for approximately 30 seconds. 11. We then removed the film from the canister. We squeegeed the film to remove excess water and chemicals, and hung it to dry. 12. All materials were cleaned up, and the processing tank was cleaned out to ensure no leftover residue. Observations: - photos came out dark, but most negatives at least partially visible - photos have some "spots" / smudges |
*D-76 Developer Instructions
["Photography Timeline" to go here] |