I found this recipe in an old developing book, can't find anything on google about it. Is it in manufacture under another name? If Focal put there name to it I would expect it too be quite nice.
You don't need gas at all, just drop glass marbles into the bottle as used and the contact surface area will be reduced into the neck, as close to the top as you like.
Found this forum searching through recipes for home brew soup and decided to join.
Predominately interested in small and medium format photography in most genres, with some digital thrown in.
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