I have a Kodak RT/LU 4*5L kit bought from AG Photographic some time ago (around 2010).
The instructions on the dev bottles (A,B,C) state:-
"3.5L water + a + b + c + water to make 5L".
I wanted to initially only mix half to give 2.5L (my 12x16 Nova tank capacity is 2L per slot).
As the bottles do not indicate the quantity of each concentrate, I decided to measure the content of each using a measuring cylinder.
For the total concentrates to make 5L, I measured...
A = 400ml
B = 230ml
C = 400ml
A = 720ml
B = 1025ml
Has Kodak changed the concentration?
Here's something else I discovered...
For 1L Dev Replenisher, the measurements for my kit indicate I would need :-
A = 80ml
B = 46ml
C = 80ml.
Water = 794ml.
That doesn't agree with the figures published by Kodak (PDF dated 2009):-
Kodak's figures for Dev Replenisher RT indicate :-
A = 50ml
B = 22.2ml
C = 50ml
Water = 877.8ml
Dev A gives a ratio 50/80 = 0.625 for the difference.
This is exactly the same ratio as the difference of the amount to make 5L (=250/400) which again suggests the concentration in the kit has changed.
For Dev B, we get = 22.2/46 = 0.48
For 5L, 120/230 = 0.52
A Similar ratio, although this time not exact.
I'm now trying to figure out how much starter I need.
I have a 1.2L bottle of Kodak Ektacolor RA.
For RA-4, the instructions on the bottle give:-
700ml Replenisher + 25ml Starter + 275ml water = 1L.
Kodak's PDF for 1L gives:-
A = 40ml
B = 17.8ml
C = 40ml
Starter = 24ml
Water = 878.2ml
Alternatively for 1.25L:-
Mixed Replenisher = 1000ml
Starter = 31ml
Water = 219ml
That doesn't tie up with the instructions on the Starter bottle.
Has the starter concentration changed also?
What do I use?
My brain is starting to hurt.