After reading about Stand development I decided to give it a try.
I used Ilford HP5 Plus 135mm film and rodinal 1:100 20C° development time: 70 minutes
I agitated the first minut, and after 30 minutes again 30 sec of agitation.
I was in a second hand shop, I bought 3 films: Agfa Isopan 100 Agfacolor CNS and Agfapan 100. these films are expired in the early 80s. The Agfapan 100 was already exposed in the 70s, but never developed, till now! I developed the film by my self, and here are the results, photo’s from the 70s!
Developed in rodinal 1+25 for 9 minutes 20°C
Negative format 6×6 cm 120mm rolfilm
Contact printed on Agfa Ridax paper (very old paper)