Wednesday, 9 December 2015

Day 1

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.

Film stock in bleach

After a few minutes
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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