Response to TMX/Rodinal

I can highly recommend switching from AGFA Rodinal to Calbe R09 (also sold as Fomatol R09 and Classic F09), the original Rodinal formula no longer used by Agfa. R09 is superior in most respects: it provides finer grain and higher acutance. As a starting point I can recommend a dilution of 1:100. TMX has quite high contrast and this dilution may be right. I have used R09 with TMX in 35mm and it improved tonality and especially acutance dramatically, although I have to admit that TMX is not one of my favored films due to its low acutance and mediocre tonality. Since I needed high contrast for that specific purpose (copy work) I remember using a dilution of 1:40 (the standard dilution) at that time. I would also recommend using half the stated speed as a starting point.

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