Friday, September 12, 2008

Film Reticulation

This Image is an example of Controlled Film Reticulation using Fuji Neopan 400. The way this is created is by placing the film into liquids of large temperature diffrences very suddenly. The emulsion goes into shock creating either globule or crack effects. With most film it is difficult to control the way the emulsion reticulates however with Fuji Neopan 400 it is possible to repeat the process in a controlled environment and get the same results each time. To achieve the degree of reticulation in the image shown above the film must be processed as normal and then reticulated during the final wash. The first wash bath should be at 3 degrees celcius for 2 minutes before shocking the film by placing it into a second wash bath heated to 90 degrees celcius for one minute. After the film has been in the water at 90 degrees celcius re immerse in wash which is 3 degrees and repeat the process. After this is done when the film is dried the emulsion always has this degree of reticulation. Thanks goes to Mark Barwald who sat for this portrait. During my earlier years experimenting with materials and processes mark was often a subject.

~ Stephen Frizza

3 comments:

  1. I've read of people trying to produce reticulation effects and failing. No wonder - it required dedication to figure out that 87 degrees delta are required!

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  2. I should note that placing the film into a cold bath before the hot bath alters the results conpaired to washing in a hot bath first then cooling rapidly.

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  3. I accidentally did this with tri-x last night, I turned on hot water for final rinse. The pattern is almost identical.

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