Before I began
handling any chemicals I ensured that my clothes where either old or protected
by an apron or overcoat and that I was wearing my disposable gloves through
out.
The film
stock that I had needed to stripped of the emulsion that was already on it, I
took this off by leaving the film in a bucket of thin bleach and water
overnight.
The next
morning I saw that the image had completely gone from the film strip I repeated
this process a couple more times in order to have enough blank film.
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| Film stock in bleach |
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| After a few minutes |
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| End result, film now clear and ready to use |
If this
experiment is unsuccessful the first time then the film stock can just be
dunked in a bleach solution once more and this will take off the emulsion and
you can start again.
The first
thing I did after the emulsion was stripped and dried was to create the two
chemical solutions A and B.
For solution
A I added the Gelatin to the distilled water and let it swell in the container
[I used a stainless steel container for this but plastic is also good] I then
placed the container into the sink which was about half full with hot water, I
had let the water cool to about 50°C before putting the container in. I then
added the 8g of potassium bromide and stirred the mixture until it had
dissolved.
For solution
B I dissolved the 10g of silver nitrate in the distilled water that was in a
stainless steel container and then cooled the water to about 40°C and
continuously stirred the mixture until uniform.
The following part is to be conducted under an
red/amber safe light as once the solutions are put together they will be
sensitive to light
Once I had
set up my DIY darkroom I then added solution B to solution A very slowly while
continuously stirring the mixture and only adding small amounts at a time. It
is recommended to add about 5ml at 30 second intervals so to do this I was
using a teaspoon to add solution B to A. This is a crucial stage as this is the
point that the silver halides begin to develop and the more slowly solution B
is added then the larger the grains, and as it is the silver halides are what
are sensitive to light and capture the image onto the emulsion.
After
following the resources I had gathered from handmadefilm.org the mixture should
at this point resemble a thick jelly, as mine had not quite got there at this
stage and I had to pack away the experiment I decided to put the mixture into a
light proof tin and place it in the fridge to set. This will keep the mixture
cool and help it to solidify.




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