PPF 200iso II

Compared with "plain" Rodinal, the grain is finer with good contrast (while not losing the highlights and shadows)

400 iso should not give problems imo..

Rodinal 1+50

Borax 0,1 %

Vit C 0.4 %

Soda crystals 1.2 % (in reverse sequence !!! )

18 minutes

Done