Developing film
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Developing Film. Intro to photography Mr. grohs. Developing Film. Objectives Learn the proper process of developing film Learn how to handle chemicals and dispose of properly. Developing Film. Safety Goggles gloves and aprons must be worn at all times Keep work area clean and organized

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Developing Film

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Developing film

Developing Film

Intro to photography

Mr. grohs


Developing film1

Developing Film

  • Objectives

    • Learn the proper process of developing film

    • Learn how to handle chemicals and dispose of properly


Developing film2

Developing Film

  • Safety

    • Goggles gloves and aprons must be worn at all times

    • Keep work area clean and organized

    • Clean equipment when finished

  • Organization

    • Please-One area for empty tanks, one area for loaded tanks, put name on full tank, remove name from empty tank


Developing film3

Developing Film

  • Successful development come down to 3 things:

    • Time

    • Temperature

    • Agitation

    • Too much= Too dark

    • Too little=Too light


Developing film4

Developing Film

  • Once film is in developing tank:

    • Developer (not a stock solution): Used to make latent image appear

      • Add 4oz of Super-76 to 16oz of cool water- Total of 20oz. For 1 roll- amounts can be cut in ½ for one roll on bottom of tank

      • Bring to 68 degrees +- 2deg.

      • Add to tank and use for 12.5 minutes using Standard Agitation

      • When finished- dispose in waste tank NOT DOWN SMALL DARKROOM SINK! Can be put in large darkroom sink.

  • Standard Agitation

    • Shake 30 seconds

    • Wait 30 sec.

    • Shake 5 sec.

    • Repeat– Shaking for 5 seconds for every 30 seconds until time is up


Developing film5

Developing Film

  • Stop Bath (Stock Solution)

    • Used to stop the developing process

      • 20 oz.

      • Room temperature

      • 30 seconds

      • Standard Agitation

      • Dispose in waste tank or large darkroom sink

  • Water Rinse

    • Fill up-shake around- dispose

    • Used to prevent contamination of next chemical


Developing film6

Developing Film

  • Fixer (Stock Solution):

    • Used to make image permanent, makes film no longer sensitive to light

      • You must get to this step in one class period, can be left in overnight

      • 20 Oz.

      • Room Temperature

      • 4 minutes- Standard Agitation-then check for clearness

      • Repeat if necessary (purple, can’t see through negatives in unexposed areas.

      • Reuse!

      • If bad, it must be disposed of in Silver Recovery Tank!!- Do not put down Drain!!

  • Water Rinse- to prevent contamination of next chemical


Developing film7

Developing Film

  • Hypo Clearing Agent (Hypo) (stock solution):

    • Used to help deactivate residuals and aid in rinse process

      • 20 Oz.

      • Room Temperature

      • 4 minutes

      • Standard Agitation

      • Reuse!- It will turn purple when bad

      • Dispose of in waste tank or large darkroom sink

  • Water Wash

    • Remove top

    • Let cool water flow in and out for 5 minutes


Developing film8

Developing Film

  • Photo Flo

    • Used to prevent water spots when drying

      • ½ capful to full tank (20 oz) of water

      • Standard Agitation for 30 seconds

      • Dispose

      • Do not rinse suds off

      • Hang film to dry overnight, clipped at top and bottom, with name on it.


Cleanup

Cleanup

Wipe down counters

Put away equipment

Empty disposal tank

Put away safety equipment—NEATLY!


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