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Figure 10-17.Loading 120 film on reel
Reversal Processing

Photography (Basic) - Introduction to photography and other graphic techniques
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Figure 10-18.–Arrangement of materials for processing film. brought to the correct processing temperature in a water bath  (fig.  10-18). A clean, dry area should be provided on the work counter for loading the film onto the reels. The following steps are used to process roll film in small tanks: 1. Load the reel or reels with the film to be processed. 2. Place the loaded reels into the tank. If the loaded reels do not come to the top of the tank, add empty reels to take up the space. Place the cover and cap on the tank. The lights may now be turned back on. Once the lights are on and before the film is fixed, be careful not to remove the tank cover or the film will be exposed to light and ruined. 3. Hold the tank in one hand and tilt it slightly; pour the developer directly from the graduate into the tank through the light trap pouring hole. Pour as fast as you can without spilling. As the developer nears the top of the tank, hold the tank level or set it in the sink. Fill the tank to just overflowing. This step should take about 10 to 20 seconds, depending on the tank size. 4. Once the tank is full, immediately start the timer, replace the cap, and strike the tank on the edge of the sink once or twice to dislodge any air bubbles. Now agitate the film by inverting the tank slowly end to end (fig.  10-19).  The  initial  agitation  should  be  30  seconds. Place the tank in the sink on its bottom (cover up). 5. Once every minute, agitate the film for 5 seconds by slowly inverting the tank end to end. After each agitation cycle, place the tank back in the sink. If you are holding the tank during the entire developing period, the heat from your hands may heat the developer and  produce  unpredictable  results. 6. When only 10 seconds of developing time remain,   remove   the   cap   from   the   tank   cover. Immediately  start  pouring  the  developer  out  of  the  tank through  the  light  trap  pouring  hole.  Dump  the chemicals  according  to  local  instructions  of  the imaging facility. This step should take about 10 seconds to  complete. 7. When the developer has been emptied from the tank,  fill  the  tank  to  overflowing  with  stop  bath.  The  stop bath must be poured into the tank through the light trap pouring hole in the tank cover. Replace the cover cap. Agitate the film in the stop bath for about 30 seconds using  the  end-for-end  method. 8. When the stop bath portion of the process is complete, pour the stop bath through the light trap pouring hole in the tank cover. 9. With the tank cover still in place, pour fixer into the tank and replace the cap. Dislodge the air bubbles and set the timer to the required fixing time. Start the timer and agitate the film using the same agitation as the developer. 10. When the prescribed fixing time has elapsed, remove the tank cover and pour the fixer from the tank back into the bottle from which it came. Never pour the 10-24







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