| Today, many labs receive requests from photographers
to process color negative films in Process E-6. The results the
photographers are looking to achieve are muted images with low
saturation. Many labs want to know how much color negative film
they can process without adversely affecting their Process E-6
and color reversal films.
Note: Kodak does not recommend processing color negative films
in any process other than the process intended for the specific
film type.
Processing films in the wrong process invalidates any guarantee
of the film's quality. Nevertheless, labs want guidelines about
the amount of color negative film they can process without adversely
affecting their processing lines. The following information is
based on seasoning tests run by processing color negative film
at a "Push-2" condition.
PROCESSING COLOR NEGATIVE FILMS
As a guide, labs that only process camera films can season their
process up to 10 percent with color negative film at a Push-2
condition, with a first-developer replenishment rate of 200 mL/ft2.
If labs process duplicating films, the amount of color negative
film allowable will be less--approximately 5 percent seasoned.
If the processing time is shorter than the time for a Push-2 process
and/or the replenishment rate is greater than 200 mL/ft2, the
amount of color negative film allowable will increase.
If the processing time is longer than the time for a Push-2 process,
the amount of film allowable will be less.
The actual amount of color negative film allowable (5 to 10 percent
seasoned) will depend on the first-developer tank volume. At 10
percent seasoned, this amount is equal to approximately one-half
of the first-developer tank volume (in litres). For exact amounts,
use the equations below or see the table. |
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