I would like to produce a duplicate of 4x5 and 8x10 black and white negative. First I did a contact copy of my original film negative and it turns a positive. The positive is sharp and has normal contrast. Then I contact the positive and it turned to be negative. This dup negative is very contrast. I used Arista Ortho Litho film, Efke print film, and X-ray film and processes it with different developers. The result is the same high contrast.
I would like to use the negative for cyanotype print.
Is it a way to get a good normal contrast duplicate negative?
Thanks
Bill
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