Following a thread from another site, I decided to make some 'Parodinal'. I'm not sure who to attribute the original recipe to (obviously someone much wiser in the ways of chemistry than myself). It is a Rodinal type developer made from 'everyday household' ingredients, i.e. Paracetamol tablets, caustic soda and sodium sulphite. I initially had severe doubts about its efficacy but, blimus, it works! And pretty good it is too, although some tweaking of dev times/dilutions is going to be needed. Now this thread might be considered by some to belong in the 'TOTALLY ARCANE & POINTLESS' section of this forum and, if the photographic chemical industry had a rosy future, I would agree. But, nothing is that certain and, if the worst happens and you can no longer get your favourite brew (for whatever reason), you've always got this simple formula to fall back on. Now all I need is some easy way to coat my own rollfilm Parodinal: 50ml water 3g acetaminophen (6 paracetamol tablets, 500mg, crushed) 4g sodium hydroxide (caustic soda) 10g sodium sulphite anhy. Leave for at least 72 hours before use. Use Rodinal times/dilutions as a guide.