this my first time manipulate, I never try that before, eventhough I used ART film before

I use coin with cloth and little metal clip,
first few times, there's nothing happend, 'til I found some tips to make it easier

but it's not a good looking pic
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PX100 film test 2
dark nite with some white street light
development temperature around 22'c
tripod used, exposure about 20 seconds

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