Originally Posted by
IanMazursky
Starter is important for these developers and bleaches (especially in E-6 and C-41 if its required).
They kick off a seasoned tank solution which helps to minimize variations in color and density.
Kits like the kodak 1 gal e-6 and the c-41 1 gal dev have the starter mixed in or as part of one of the mixes.
A good thing about the starter concentrate is they last almost forever.
IIRC, In one of the kodak tech pubs i read they have the life listed as indefinitely.
Im sure you can use it without but the results can be unpredictable and repeatability can become an issue.
I accidentally forgot it once in the E-6 CD and it didn't look good to say the least.
RA4 may be a bit different in that you can compensate with a different filter pack.
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