First create a journal page that begins by copying the pictures and notes shown on our white board:
We watched the videos below and practiced opening a film canister, loading it into the Developing tank, and elements of the procedure thereafter:
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Developing Film starts 10-15
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Once the tank is loaded, the film is protected from the light. In the light of the classroom you can pour chemicals into the tank through an opening in the top-which is shaped like a funnel...
DEVELOPING FILM: The Chemical Process
Objective:
SWBAT to demonstrate knowledge of the process of developing film in a developing tank.
Task: Watch the 9 minute Video and LIST the steps to develop film as this photographer mentions each step of the processing. As you watch Video #2 add to the list and note differences in the two videos. We will use these basic steps so watch carefully. Your completed list must be handed in at the end of class.
We watched these Videos on or around 10/25 --if you were absent watch them here AND LIST the basic steps... please remember that everybody does this a little different, because not all the chemicals are the same from every manufacturer, but these videos are still good for the basics and to see the general procedure
About 11/12 NOTES: If you missed these days, copy these notes (BLUE) : These are the steps we will use in class to process and develop Film into negatives, and may be different than the videos
CHEMICAL PROCESS TO DEVELOP FILM:
STEP 1:
First, the film is put into a developing tank and a acidic solution is poured in called developer (we use 7 minutes), in which silver halide converts to metallic silver and makes the invisible image visible.
AGITATE for 30 seconds, then 5 seconds each minute.
STEP 2:
To stop this process from continuing indefinitely and ruining the image, the film then has to be dipped in an acidic solution called a Stop Bath to neutralize the developer.
AGITATE for 30 seconds, then pour back into brown jug of Stop Bath.
STEP 3:
The image is made permanent by dissolving any remaining silver halide using a chemical solution known as hypo or Fixer (we use 6 minutes).
AGITATE for the first 30 seconds, then 5 seconds each minute.
STEP 4:
Hypo - CLEARING Agent: (rinses off the Fixer) 2 minutes, AGITATE THROUGHOUT
STEP 5:
TAKE OFF THE lid, rinse it out and place it on drying rack.
PLACE The film UNDER running water for 5 minutes. Remove film and place the wet parts to dry on the drying rack.
ABSOLUTELY NOTHING CAN BE LEFT IN OR AROUND THE SINK
then:
Hang Film up to dry using the "tail" end up, always attaching an ID TAG at the top with a clothespin and a clothespin at the bottom to keep the film from curling up. It takes a few hours to dry-do not touch the black emulsion - it is gooey and could be smudged off easily until it is dry!
Video #1: Watch our class video below while you jot down the steps:
Video #2: Watch our class videos below while you add to the steps and make a more complete list. Hand in your list and notes with your name, date and period.
Click on the photograph to open the You Tube Video you can watch at home.
Click on the photograph for a video that includes using the Developing Bag while loading your film into a developing tank. Again, You Tube videos cannot be watched by students at the school, as it is blocked. (You could watch on your cell phone if at school, but please ask to use your cell phone for this)
Loading the film into the Developing TankFilm can be loaded into the developing tank in the small room we have within the dark room, as long as the lights are off, as any kind of light or glow will ruin the film (this includes cell phones!) Film can also be loaded in the light of the classroom using a developing bag constructed for the purpose- the bag is light tight and your hands go into the bag secured with elastic to keep light out.
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Processing or Developing the film with chemicals
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How to hang the film and store the film
Hang the film with an ID TAG on the clothesline, using a clothespin, and put a clothespin at the bottom too-as a weight so the film does not dry all curled up. The next day, or a few hours, when the film is dry, it must be cut into strips of 5 frames to place into the Protective Storage Sleeves for safe keeping, identification and organization.
Cleanup of materials used is required, this includes putting away anything used to it's proper place (like developing bag-can opener-scissors-discarded film container-chemicals- all have a place and cannot be left out for the next person to clean up):
Counters must be wiped and developing tank parts placed on drying rack to dry. If cleanup procedures are not followed, this will impact your grade because leaving a mess causes confusion in the classroom and is not fair to all others who use the room.
Cleanup of materials used is required, this includes putting away anything used to it's proper place (like developing bag-can opener-scissors-discarded film container-chemicals- all have a place and cannot be left out for the next person to clean up):
Counters must be wiped and developing tank parts placed on drying rack to dry. If cleanup procedures are not followed, this will impact your grade because leaving a mess causes confusion in the classroom and is not fair to all others who use the room.