Being a long a time rodinal user, I've gotten used to how easy it is.
I just got some Ilfotec HC, and it states that you have to make a stock solution by diluting the one liter developer 1+3, and thereafter diluting it further to arrive at a working solution.
It states in the fact sheet that you have to do this, because Ilfotec HC is difficult to dilute precisely from the concentrate.
I must admit I don't get this.
Is there any problem if I develop say one 35mm film and use the following method knowing that a 35mm film needs at least 290ml of developper in a paterson tank:
take 3ml of concentrate
dilute it 1+3 to arrive at a 12ml stock solution.
thereafter dilute it furter 1+31 to arrive at a working solution of 382ml.
The reason I'm asking this is that if I dilute the whole bottle of Ilfotec HC 1+3 to arrive at a 4 liter stock solution, it will only last half a year, whereas the concentrate can last almost indefinately, and considering how expensive it is in my country (35 pounds) I would like it to last as long as possible.
I don't understand why it has to be complicated or a problem to only use a little concentrate at a time.
Can somebody please explain this?