Im rather confused about this post :-(posted 8337 days ago)Dan posted it from Agfa, " in our technical data we mention that 500 ml concentrate of RODINAL will last for 50 films (135-36). That means that you need 10 ml concentrate to process 1 film. It does not matter what the dilution is. Important is that you are using 10 ml concentrate. For example if you are processing with a dilution of 1+50 than you need 10 ml concentrate plus 500 ml water so that you will have in total 550 ml solution to process your film. Why is it importatn to take 10 ml because these 10 ml contain the amount of substances which will be used to process your film correctly and with reproducible results. It can be that you will get good results with less than 10 ml as mentioned in one answer but to be sure we recommend 10 ml. I hope this will answer your question. If you have further questions please do not hesitate to contact me.
Kind regards Wolfgang Holz Product Manager Marketing Chemicals
Agfa-Gevaert AG "
Wolfgang Said, "For example if you are processing with a dilution of 1+50 than you need 10 ml concentrate plus 500 ml water so that you will have in total 550 ml solution to process your film."
Surely that should be 500ml of water and 10ml of solution making 510ml not 550ml ? -Mike.