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feel like sharing an experiment im working on atm
>print on c-type paper
>with slides
>blank c41 negative in between light and slide
>develop in bw paper developer, skip fix
>re expose
>develop in ra 4 chemicals
>get poor mans cibachrome
the results are extremely high contrast, so you'll usually have to pre-flash the paper to get any shadow details, but all in all its a surprisingly viable process