The death of Presto has moved my good friend, and mentor, Thomas, onto Tri-X. I was earnestly trying to convince him that if he wanted interesting grain, he should have a go at developing it in Rodinal. It’s something of a struggle to explain the differences, and no doubt, almost entirely subjective.
The easiest thing is an example, so here is an extreme case:
(click to see it a little larger)
Tri-X in Rodinal @ 20ºC for 13mins. Gentle agitation for the first 30s, and for 5s every minute. Taken using a 6×9 back on a 4×5 Pacemaker Speed Graphic, and an 8″ Dallmeyer-Pentac f/2.9 lens.